diff --git a/accounts.json b/accounts.json
index 94a7cf1..771b513 100644
--- a/accounts.json
+++ b/accounts.json
@@ -3,6 +3,7 @@
   "beeeeer": "\\Account\\MiningPool\\Beeeeer",
   "bitminter": "\\Account\\MiningPool\\BitMinter",
   "btcguild": "\\Account\\MiningPool\\BTCGuild",
+  "clevermining": "\\Account\\MiningPool\\CleverMining",
   "coinhuntr": "\\Account\\MiningPool\\CoinHuntr",
   "cryptopools_dgc": "\\Account\\MiningPool\\CryptoPoolsDGC",
   "cryptotroll_doge": "\\Account\\MiningPool\\CryptoTrollDOGE",
@@ -28,9 +29,11 @@
   "liteguardian": "\\Account\\MiningPool\\LiteGuardian",
   "litepooleu": "\\Account\\MiningPool\\LitepoolEu",
   "ltcmineru": "\\Account\\MiningPool\\LTCMineRu",
+  "ltcrabbit": "\\Account\\MiningPool\\LTCRabbit",
   "miningforeman": "\\Account\\MiningPool\\MiningForemanLTC",
   "miningforeman_ftc": "\\Account\\MiningPool\\MiningForemanFTC",
   "miningpoolco": "\\Account\\MiningPool\\MiningPoolCo",
+  "miningpoolhub": "\\Account\\MiningPool\\MiningPoolHub",
   "multipool": "\\Account\\MiningPool\\Multipool",
   "mupool": "\\Account\\MiningPool\\MuPool",
   "nicehash": "\\Account\\MiningPool\\NiceHash",
@@ -50,5 +53,6 @@
   "teamdoge": "\\Account\\MiningPool\\TeamDoge",
   "triplemining": "\\Account\\MiningPool\\TripleMining",
   "westhash": "\\Account\\MiningPool\\WestHash",
-  "ypool": "\\Account\\MiningPool\\YPool"
+  "ypool": "\\Account\\MiningPool\\YPool",
+  "zpool": "\\Account\\MiningPool\\ZPool"
 }
diff --git a/src/CleverMining.php b/src/CleverMining.php
new file mode 100644
index 0000000..3ed35bc
--- /dev/null
+++ b/src/CleverMining.php
@@ -0,0 +1,77 @@
+<?php
+
+namespace Account\MiningPool;
+
+use \Monolog\Logger;
+use \Account\Account;
+use \Account\Miner;
+use \Account\DisabledAccount;
+use \Account\SimpleAccountType;
+use \Account\AccountFetchException;
+use \Apis\FetchException;
+use \Apis\FetchHttpException;
+use \Apis\Fetch;
+use \Openclerk\Currencies\CurrencyFactory;
+
+/**
+ * Represents the clevermining.com mining pool.
+ */
+class CleverMining extends AbstractMiner {
+
+  public function getName() {
+    return "clevermining.com";
+  }
+
+  public function getCode() {
+    return "clevermining";
+  }
+
+  public function getURL() {
+    return "http://clevermining.com/";
+  }
+
+  public function getFields() {
+    return array(
+      'api_key' => array(
+        'title' => "API key",
+        'regexp' => "#^.{20}$#"
+      ),
+    );
+  }
+
+  public function fetchSupportedCurrencies(CurrencyFactory $factory, Logger $logger) {
+    // there is no API call to list supported currencies
+    return array('btc');
+  }
+
+  public function fetchSupportedHashrateCurrencies(CurrencyFactory $factory, Logger $logger) {
+    return array();
+  }
+
+  public function fetchBalances($account, CurrencyFactory $factory, Logger $logger) {
+
+    $result = array();
+
+    foreach ($this->fetchSupportedCurrencies($factory, $logger) as $cur) {
+      $abbr = strtoupper($cur);
+      $instance = $factory->loadCurrency($cur);
+      if ($instance != null) {
+        $abbr = $instance->getAbbr();
+      }
+
+      $url = "https://www.clevermining.com/api/v1/users/" . urlencode($account['api_key']);
+      $json = $this->fetchJSON($url, $logger);
+
+      switch ($cur) {
+        case "btc": 
+          $result[$cur] = array(
+            'confirmed' => $json['general']['balance'],
+          );
+      }
+    }
+
+    return $result;
+
+  }
+
+}
diff --git a/src/LTCRabbit.php b/src/LTCRabbit.php
new file mode 100644
index 0000000..f45e606
--- /dev/null
+++ b/src/LTCRabbit.php
@@ -0,0 +1,77 @@
+<?php
+
+namespace Account\MiningPool;
+
+use \Monolog\Logger;
+use \Account\Account;
+use \Account\Miner;
+use \Account\DisabledAccount;
+use \Account\SimpleAccountType;
+use \Account\AccountFetchException;
+use \Apis\FetchException;
+use \Apis\FetchHttpException;
+use \Apis\Fetch;
+use \Openclerk\Currencies\CurrencyFactory;
+
+/**
+ * Represents the ltcrabbit.com mining pool.
+ */
+class LTCRabbit extends AbstractMiner {
+
+  public function getName() {
+    return "ltcrabbit.com";
+  }
+
+  public function getCode() {
+    return "ltcrabbit";
+  }
+
+  public function getURL() {
+    return "http://ltcrabbit.com/";
+  }
+
+  public function getFields() {
+    return array(
+      'api_key' => array(
+        'title' => "API key",
+        'regexp' => "#^.{20}$#"
+      ),
+    );
+  }
+
+  public function fetchSupportedCurrencies(CurrencyFactory $factory, Logger $logger) {
+    // there is no API call to list supported currencies
+    return array('ltc');
+  }
+
+  public function fetchSupportedHashrateCurrencies(CurrencyFactory $factory, Logger $logger) {
+    return array();
+  }
+
+  public function fetchBalances($account, CurrencyFactory $factory, Logger $logger) {
+
+    $result = array();
+
+    foreach ($this->fetchSupportedCurrencies($factory, $logger) as $cur) {
+      $abbr = strtoupper($cur);
+      $instance = $factory->loadCurrency($cur);
+      if ($instance != null) {
+        $abbr = $instance->getAbbr();
+      }
+
+      $url = "https://www.ltcrabbit.com/index.php?page=api&action=getappdata&appname=openclerk&appversion=1&api_key=" . urlencode($account['api_key']);
+      $json = $this->fetchJSON($url, $logger);
+
+      switch ($cur) {
+        case "ltc": 
+          $result[$cur] = array(
+            'confirmed' => $json['getappdata']['user']['balance'],
+          );
+      }
+    }
+
+    return $result;
+
+  }
+
+}
diff --git a/src/MiningPoolHub.php b/src/MiningPoolHub.php
new file mode 100644
index 0000000..3988135
--- /dev/null
+++ b/src/MiningPoolHub.php
@@ -0,0 +1,82 @@
+<?php
+
+namespace Account\MiningPool;
+
+use \Monolog\Logger;
+use \Account\Account;
+use \Account\Miner;
+use \Account\DisabledAccount;
+use \Account\SimpleAccountType;
+use \Account\AccountFetchException;
+use \Apis\FetchException;
+use \Apis\FetchHttpException;
+use \Apis\Fetch;
+use \Openclerk\Currencies\CurrencyFactory;
+
+/**
+ * Represents the miningpoolhub.com mining pool.
+ */
+class MiningPoolHub extends AbstractMiner {
+
+  public function getName() {
+    return "miningpoolhub.com";
+  }
+
+  public function getCode() {
+    return "miningpoolhub";
+  }
+
+  public function getURL() {
+    return "http://miningpoolhub.com/";
+  }
+
+  public function getFields() {
+    return array(
+      'api_id' => array(
+        'title' => "API ID",
+        'regexp' => "#^[0-9]+$#",
+      ),
+      'api_key' => array(
+        'title' => "API key",
+        'regexp' => "#^.{20}$#"
+      ),
+    );
+  }
+
+  public function fetchSupportedCurrencies(CurrencyFactory $factory, Logger $logger) {
+    // there is no API call to list supported currencies
+    return array('btc'); // all converted to BTC
+  }
+
+  public function fetchSupportedHashrateCurrencies(CurrencyFactory $factory, Logger $logger) {
+    return array();
+  }
+
+  public function fetchBalances($account, CurrencyFactory $factory, Logger $logger) {
+
+    $confirmed = 0;
+    $pending = 0;
+    $unconfirmed = 0;
+
+    foreach (json_decode(@file_get_contents("http://miningpoolhub.com/index.php?page=api&action=getminingandprofitsstatistics"))->{'return'} as $coin) {
+      $url = "http://" . $coin->{'coin_name'} . ".miningpoolhub.com/index.php?page=api&action=getdashboarddata&api_key=" . urlencode($account['api_key']) . "&id=" . urlencode($account['api_id']);
+      $json = @file_get_contents($url);
+      $data = json_decode($json)->{'getdashboarddata'}->{'data'};
+      $confirmed += ((float)$data->{'balance'}->{'confirmed'} + (float)$data->{'balance_for_auto_exchange'}->{'confirmed'}) * (float)$coin->{'highest_buy_price'};
+      $pending += (float)$data->{'balance_on_exchange'} * (float)$coin->{'highest_buy_price'};
+      $unconfirmed += ((float)$data->{'balance'}->{'unconfirmed'} + (float)$data->{'balance_for_auto_exchange'}->{'unconfirmed'}) * (float)$coin->{'highest_buy_price'};
+    }
+
+    return array(
+      'btc' => array(
+        'confirmed' => $confirmed,
+        'pending' => $pending,
+        'unconfirmed' => $unconfirmed,
+      ),
+    );
+
+    $result = array();
+
+  }
+
+}
diff --git a/src/NiceHash.php b/src/NiceHash.php
index 49dfff5..f0b7450 100644
--- a/src/NiceHash.php
+++ b/src/NiceHash.php
@@ -60,10 +60,20 @@ public function fetchBalances($account, CurrencyFactory $factory, Logger $logger
       throw new AccountFetchException($json['result']['error']);
     }
 
+    $unconfirmed = 0;
+    foreach (json_decode(@file_get_contents("https://www.nicehash.com/api?method=buy.info"))->{'result'}->{'algorithms'} as $algo) {
+      for ($location = 0; $location <= 1; $location++) {
+        foreach (json_decode(@file_get_contents("https://www.nicehash.com/api?method=orders.get&my&id=" . urlencode($account['api_id']) . "&key=" . urlencode($account['api_key']) . "&location=" . $location . "&algo=" . $algo->{'algo'}))->{'result'}->{'orders'} as $order) {
+          $unconfirmed += $order->{'btc_avail'};
+        }
+      }
+    }
+
     return array(
       'btc' => array(
         'confirmed' => $json['result']['balance_confirmed'],
         'pending' => $json['result']['balance_pending'],
+        'unconfirmed' => $unconfirmed,
       ),
     );
 
diff --git a/src/ZPool.php b/src/ZPool.php
new file mode 100644
index 0000000..18bb1b7
--- /dev/null
+++ b/src/ZPool.php
@@ -0,0 +1,75 @@
+<?php
+
+namespace Account\MiningPool;
+
+use \Monolog\Logger;
+use \Account\Account;
+use \Account\Miner;
+use \Account\DisabledAccount;
+use \Account\SimpleAccountType;
+use \Account\AccountFetchException;
+use \Apis\FetchException;
+use \Apis\FetchHttpException;
+use \Apis\Fetch;
+use \Openclerk\Currencies\CurrencyFactory;
+
+/**
+ * Represents the zpool.ca mining pool.
+ */
+class ZPool extends AbstractMiner {
+
+  public function getName() {
+    return "zpool.ca";
+  }
+
+  public function getCode() {
+    return "zpool";
+  }
+
+  public function getURL() {
+    return "http://zpool.ca/";
+  }
+
+  public function getFields() {
+    return array(
+      'api_key' => array(
+        'title' => "API key",
+        'regexp' => "#^.{20}$#"
+      ),
+    );
+  }
+
+  public function fetchSupportedCurrencies(CurrencyFactory $factory, Logger $logger) {
+    // there is no API call to list supported currencies
+    return array('btc');
+  }
+
+  public function fetchSupportedHashrateCurrencies(CurrencyFactory $factory, Logger $logger) {
+    return array();
+  }
+
+  public function fetchBalances($account, CurrencyFactory $factory, Logger $logger) {
+
+    $result = array();
+
+    foreach ($this->fetchSupportedCurrencies($factory, $logger) as $cur) {
+      $abbr = strtoupper($cur);
+      $instance = $factory->loadCurrency($cur);
+      if ($instance != null) {
+        $abbr = $instance->getAbbr();
+      }
+
+      $url = "http://www.zpool.ca/api/wallet?address=" . urlencode($account['api_key']);
+      $json = $this->fetchJSON($url, $logger);
+
+      $result[$cur] = array(
+        'confirmed' => $json['balance'],
+        'unconfirmed' => $json['unsold'],
+      );
+    }
+
+    return $result;
+
+  }
+
+}
diff --git a/test/CleverMiningTest.php b/test/CleverMiningTest.php
new file mode 100644
index 0000000..982459e
--- /dev/null
+++ b/test/CleverMiningTest.php
@@ -0,0 +1,57 @@
+<?php
+
+namespace Account\MiningPool\Tests;
+
+use Monolog\Logger;
+use Account\AccountType;
+use Account\AccountFetchException;
+use Account\Tests\AbstractAccountTest;
+use Account\Tests\AbstractActiveAccountTest;
+use Openclerk\Config;
+use Openclerk\Currencies\Currency;
+
+/**
+ * Tests the {@link CleverMining} account type.
+ */
+class CleverMiningTest extends AbstractMiningPoolTest {
+
+  function __construct() {
+    parent::__construct(new \Account\MiningPool\CleverMining());
+  }
+
+  /**
+   * Get some field values for a valid account.
+   * @return array of fields
+   */
+  function getValidAccount() {
+    return array(
+      'api_key' => '1Q24z7gHPDbedkaWDTFqhMF8g7iHMehsCb',
+    );
+  }
+
+  /**
+   * Get some field values for a missing account,
+   * but one that is still valid according to the fields.
+   * @return array of fields
+   */
+  function getMissingAccount() {
+    return array(
+      'api_key' => '2Q24z7gHPDbedkaWDTFqhMF8g7iHMehsCb',
+    );
+  }
+
+  /**
+   * Get some invalid field values.
+   * @return array of fields
+   */
+  function getInvalidAccount() {
+    return array(
+      'api_key' => 'hello',
+    );
+  }
+
+  function doTestValidValues($balances) {
+    $this->assertEquals(0, $balances['btc']['confirmed']);
+  }
+
+}
diff --git a/test/LTCRabbitTest.php b/test/LTCRabbitTest.php
new file mode 100644
index 0000000..1e44749
--- /dev/null
+++ b/test/LTCRabbitTest.php
@@ -0,0 +1,57 @@
+<?php
+
+namespace Account\MiningPool\Tests;
+
+use Monolog\Logger;
+use Account\AccountType;
+use Account\AccountFetchException;
+use Account\Tests\AbstractAccountTest;
+use Account\Tests\AbstractActiveAccountTest;
+use Openclerk\Config;
+use Openclerk\Currencies\Currency;
+
+/**
+ * Tests the {@link LTCRabbit} account type.
+ */
+class LTCRabbitTest extends AbstractMiningPoolTest {
+
+  function __construct() {
+    parent::__construct(new \Account\MiningPool\LTCRabbit());
+  }
+
+  /**
+   * Get some field values for a valid account.
+   * @return array of fields
+   */
+  function getValidAccount() {
+    return array(
+      'api_key' => '7ca421ef0b4c700543a0ca6b020e415614ec5fa768483859d0eb56af015a06f2',
+    );
+  }
+
+  /**
+   * Get some field values for a missing account,
+   * but one that is still valid according to the fields.
+   * @return array of fields
+   */
+  function getMissingAccount() {
+    return array(
+      'api_key' => '8ca421ef0b4c700543a0ca6b020e415614ec5fa768483859d0eb56af015a06f2',
+    );
+  }
+
+  /**
+   * Get some invalid field values.
+   * @return array of fields
+   */
+  function getInvalidAccount() {
+    return array(
+      'api_key' => 'hello',
+    );
+  }
+
+  function doTestValidValues($balances) {
+    $this->assertEquals(0, $balances['ltc']['confirmed']);
+  }
+
+}
diff --git a/test/MiningPoolHubTest.php b/test/MiningPoolHubTest.php
new file mode 100644
index 0000000..3ba865e
--- /dev/null
+++ b/test/MiningPoolHubTest.php
@@ -0,0 +1,59 @@
+<?php
+
+namespace Account\MiningPool\Tests;
+
+use Monolog\Logger;
+use Account\AccountType;
+use Account\AccountFetchException;
+use Account\Tests\AbstractAccountTest;
+use Account\Tests\AbstractActiveAccountTest;
+use Openclerk\Config;
+use Openclerk\Currencies\Currency;
+
+/**
+ * Tests the {@link MiningPoolHub} account type.
+ */
+class MiningPoolHubTest extends AbstractMiningPoolTest {
+
+  function __construct() {
+    parent::__construct(new \Account\MiningPool\MiningPoolHub());
+  }
+
+  /**
+   * Get some field values for a valid account.
+   * @return array of fields
+   */
+  function getValidAccount() {
+    return array(
+      'api_key' => '3f92996d71ca91be5bf5cee9f332fa6b06d428d038b5be41c6ece066eaaf83ff',
+    );
+  }
+
+  /**
+   * Get some field values for a missing account,
+   * but one that is still valid according to the fields.
+   * @return array of fields
+   */
+  function getMissingAccount() {
+    return array(
+      'api_key' => '4f92996d71ca91be5bf5cee9f332fa6b06d428d038b5be41c6ece066eaaf83ff',
+    );
+  }
+
+  /**
+   * Get some invalid field values.
+   * @return array of fields
+   */
+  function getInvalidAccount() {
+    return array(
+      'api_key' => 'hello',
+    );
+  }
+
+  function doTestValidValues($balances) {
+    $this->assertEquals(0, $balances['btc']['confirmed']);
+    $this->assertEquals(0, $balances['btc']['pending']);
+    $this->assertEquals(0, $balances['btc']['unconfirmed']);
+  }
+
+}
diff --git a/test/ZPoolTest.php b/test/ZPoolTest.php
new file mode 100644
index 0000000..5c722c5
--- /dev/null
+++ b/test/ZPoolTest.php
@@ -0,0 +1,58 @@
+<?php
+
+namespace Account\MiningPool\Tests;
+
+use Monolog\Logger;
+use Account\AccountType;
+use Account\AccountFetchException;
+use Account\Tests\AbstractAccountTest;
+use Account\Tests\AbstractActiveAccountTest;
+use Openclerk\Config;
+use Openclerk\Currencies\Currency;
+
+/**
+ * Tests the {@link ZPool} account type.
+ */
+class ZPoolTest extends AbstractMiningPoolTest {
+
+  function __construct() {
+    parent::__construct(new \Account\MiningPool\ZPool());
+  }
+
+  /**
+   * Get some field values for a valid account.
+   * @return array of fields
+   */
+  function getValidAccount() {
+    return array(
+      'api_key' => '1Q24z7gHPDbedkaWDTFqhMF8g7iHMehsCb',
+    );
+  }
+
+  /**
+   * Get some field values for a missing account,
+   * but one that is still valid according to the fields.
+   * @return array of fields
+   */
+  function getMissingAccount() {
+    return array(
+      'api_key' => '2Q24z7gHPDbedkaWDTFqhMF8g7iHMehsCb',
+    );
+  }
+
+  /**
+   * Get some invalid field values.
+   * @return array of fields
+   */
+  function getInvalidAccount() {
+    return array(
+      'api_key' => 'hello',
+    );
+  }
+
+  function doTestValidValues($balances) {
+    $this->assertEquals(0, $balances['btc']['confirmed']);
+    $this->assertEquals(0, $balances['btc']['unconfirmed']);
+  }
+
+}