diff --git a/lib/resource/CollectionResource.js b/lib/resource/CollectionResource.js
index 399a734c..2b9f249d 100644
--- a/lib/resource/CollectionResource.js
+++ b/lib/resource/CollectionResource.js
@@ -268,30 +268,11 @@ utils.inherits(CollectionResource, Resource);
  *
  * application.getAccounts({ expand: 'customData' }, function (err, collection) {
  *   if (!err) {
- *     collection.concat(iterator, donCallback);
+ *     collection.concat(iterator, doneCallback);
  *   }
  * });
  */
 
-/**
- * @name CollectionResource#concatLimit
- *
- * @function
- *
- * @description
- * The same interface as `concat`, but with a 2nd parameter that can be used to
- * limit the number of parallel workers.
- *
- * @param {Function} iterator
- * Same interface as {@link CollectionResource#concat concat}.
- *
- * @param {Number} limit
- * The maximum number of parallel iterator workers.
- *
- * @param {Function} doneCallback
- * Same interface as {@link CollectionResource#concat concat}.
- */
-
 /**
  * @name CollectionResource#concatSeries
  *
@@ -320,54 +301,33 @@ utils.inherits(CollectionResource, Resource);
  *
  * @param {Function} iterator
  * The function to call, for each resource in the collection. Will be called
- * with `(resource, next)`. The `next(err, test)` function must be called to
+ * with `(resource, next)`. The `next(test)` function must be called to
  * advance to the next resource. Iteration is ended as soon as a truthy value
- * is provided to either `err` or `test`.
+ * is provided to `test`.
  *
  * @param {Function} doneCallback
- * The function to call when iteration has ended. Will be called with `(err,
- * foundResource)`.
+ * The function to call when iteration has ended. Will be called with
+ * `(foundResource)`.
  *
  * @example
  * // Find the first account that likes pizza.
  *
  * function iterator(account, next) {
- *   next(null, account.customData.favoriteFood === 'pizza');
+ *   next(account.customData.favoriteFood === 'pizza');
  * }
  *
- * function doneCallback(err, foundAccount) {
- *   if (!err) {
- *     console.log('Guess who likes pizza??').
- *     console.log(foundAccount.fullName);
- *   }
+ * function doneCallback(foundAccount) {
+ *   console.log('Guess who likes pizza??');
+ *   console.log(foundAccount.email);
  * }
  *
  * application.getAccounts({ expand: 'customData' }, function (err, collection) {
  *   if (!err) {
- *     collection.detect(iterator, donCallback);
+ *     collection.detect(iterator, doneCallback);
  *   }
  * });
  */
 
-/**
- * @name CollectionResource#detectLimit
- *
- * @function
- *
- * @description
- * The same interface as `detect`, but with a 2nd parameter that can be used to
- * limit the number of parallel workers.
- *
- * @param {Function} iterator
- * Same interface as {@link CollectionResource#detect detect}.
- *
- * @param {Number} limit
- * The maximum number of parallel iterator workers.
- *
- * @param {Function} doneCallback
- * Same interface as {@link CollectionResource#detect detect}.
- */
-
 /**
  * @name CollectionResource#detectSeries
  *
@@ -412,7 +372,7 @@ utils.inherits(CollectionResource, Resource);
  *
  * function doneCallback(err) {
  *   if (!err) {
- *     console.log('All accounts have been visited.').
+ *     console.log('All accounts have been visited.');
  *   }
  * }
  *
@@ -469,70 +429,33 @@ utils.inherits(CollectionResource, Resource);
  *
  * @param {Function} iterator
  * The function to call, for each resource in the collection. Will be called
- * with `(resource, next)`. The `next(err, test)` function must be called to
- * advance to the next resource. If an `err` value is passed to next, the
- * iteration will stop and the `doneCallback` will be called with the `err`
- * value.
+ * with `(resource, next)`. The `next(test)` function must be called to
+ * advance to the next resource.
  *
  * @param {Function} doneCallback
- * The function to call when iteration has ended. Will be called with `(err,
- * test)`.
+ * The function to call when iteration has ended. Will be called with
+ * `(test)`.
  *
  * @example
  * // Does everyone like Brie cheese?
  *
  * function iterator(account, next) {
- *   next(null, account.customData.likesBrie === true);
+ *   next(account.customData.likesBrie === true);
  * }
  *
- * function doneCallback(err, test) {
- *   if (!err && test === true) {
+ * function doneCallback(test) {
+ *   if (test === true) {
  *     console.log('Everyone likes Brie??');
  *   }
  * }
  *
  * application.getAccounts({ expand: 'customData' }, function (err, collection) {
  *   if (!err) {
- *     collection.every(iterator, donCallback);
+ *     collection.every(iterator, doneCallback);
  *   }
  * });
  */
 
-/**
- * @name CollectionResource#everyLimit
- *
- * @function
- *
- * @description
- * The same interface as `every`, but with a 2nd parameter that can be used to
- * limit the number of parallel workers.
- *
- * @param {Function} iterator
- * Same interface as {@link CollectionResource#every every}.
- *
- * @param {Number} limit
- * The maximum number of parallel iterator workers.
- *
- * @param {Function} doneCallback
- * Same interface as {@link CollectionResource#every every}.
- */
-
-/**
- * @name CollectionResource#everySeries
- *
- * @function
- *
- * @description
- * The same interface as `every`, but the `iterator` will be called in series,
- * not in parallel.
- *
- * @param {Function} iterator
- * Same interface as {@link CollectionResource#every every}.
- *
- * @param {Function} doneCallback
- * Same interface as {@link CollectionResource#every every}.
- */
-
 /**
  * @name CollectionResource#filter
  *
@@ -545,29 +468,24 @@ utils.inherits(CollectionResource, Resource);
  *
  * @param {Function} iterator
  * The function to call for each resource in the collection. Will be called
- * with `(resource, next)`. The `next(err, test)` function must be called in order to
+ * with `(resource, next)`. The `next(test)` function must be called in order to
  * advance to the next resource. The `test` value should be a boolean value that
  * indicates if the resource should be included in the filtered collection.
  *
- * If an `err` value is passed to next, the iteration will stop and the
- * `doneCallback` will be called with the `err` value.
- *
  * @param {Function} doneCallback
  * The function to call when all items have been visited. Will be called with
- * `(err, [filteredResources])`.
+ * `([filteredResources])`.
  *
  * @example
- * // Find all accounts that have the 'paid' plan property, in custom data.
+ * // Find all accounts that have the 'paid' plan property in custom data.
  *
  * function iterator(account, next) {
- *   next(null, account.customData.plan === 'paid');
+ *   next(account.customData.plan === 'paid');
  * }
  *
- * function doneCallback(err, paidAccounts) {
- *   if (!err) {
- *     console.log('All paid accounts:').
- *     console.log(paidAccounts);
- *   }
+ * function doneCallback(paidAccounts) {
+ *   console.log('All paid accounts:');
+ *   console.log(paidAccounts);
  * }
  *
  * application.getAccounts({ expand: 'customData' }, function (err, collection) {
@@ -577,25 +495,6 @@ utils.inherits(CollectionResource, Resource);
  * });
  */
 
-/**
- * @name CollectionResource#filterLimit
- *
- * @function
- *
- * @description
- * The same interface as `filter`, but with a 2nd parameter that can be used to
- * limit the number of parallel workers.
- *
- * @param {Function} iterator
- * Same interface as {@link CollectionResource#filter filter}.
- *
- * @param {Number} limit
- * The maximum number of parallel iterator workers.
- *
- * @param {Function} doneCallback
- * Same interface as {@link CollectionResource#filter filter}.
- */
-
 /**
  * @name CollectionResource#filterSeries
  *
@@ -641,7 +540,7 @@ utils.inherits(CollectionResource, Resource);
  *
  * function doneCallback(err, emails) {
  *   if (!err) {
- *     console.log('All email addresses in this application:').
+ *     console.log('All email addresses in this application:');
  *     console.log(emails);
  *   }
  * }
@@ -698,8 +597,8 @@ utils.inherits(CollectionResource, Resource);
  * to a new value. The `iterator` will be called in parallel.
  *
  * @param {*} initialValue
- * The initial value that will then be passed to the `iterator` as `result`,
- * this is the value that you will mutate over time as the iterator is called
+ * The initial value that will then be passed to the `iterator` as `result`.
+ * This is the value that you will mutate over time as the iterator is called
  * with every resource in the collection.
  *
  * @param {Function} iterator
@@ -721,7 +620,7 @@ utils.inherits(CollectionResource, Resource);
  *   if (result.indexOf(color) === -1) {
  *     result.push(color);
  *   }
- *   return result;
+ *   return next(null, result);
  * }
  *
  * function doneCallback(err, colors) {
@@ -732,7 +631,7 @@ utils.inherits(CollectionResource, Resource);
  *
  * application.getAccounts({ expand: 'customData' }, function (err, collection) {
  *   if (!err) {
- *     collection.reduce([], iterator, donCallback);
+ *     collection.reduce([], iterator, doneCallback);
  *   }
  * });
  */
@@ -771,25 +670,24 @@ utils.inherits(CollectionResource, Resource);
  *
  * @param {Function} doneCallback
  * Same interface as {@link CollectionResource#filter filter}.
- */
-
-/**
- * @name CollectionResource#rejectLimit
  *
- * @function
- *
- * @description
- * The same interface as `reject`, but with a 2nd parameter that can be used to
- * limit the number of parallel workers.
+ * @example
+ * // Find all accounts that don't have the 'paid' plan property in custom data.
  *
- * @param {Function} iterator
- * Same interface as {@link CollectionResource#reject reject}.
+ * function iterator(account, next) {
+ *   next(account.customData.plan === 'paid');
+ * }
  *
- * @param {Number} limit
- * The maximum number of parallel iterator workers.
+ * function doneCallback(paidAccounts) {
+ *   console.log('All unpaid accounts:');
+ *   console.log(paidAccounts);
+ * }
  *
- * @param {Function} doneCallback
- * Same interface as {@link CollectionResource#reject reject}.
+ * application.getAccounts({ expand: 'customData' }, function (err, collection) {
+ *   if (!err) {
+ *     collection.reject(iterator, doneCallback);
+ *   }
+ * });
  */
 
 /**
@@ -820,70 +718,33 @@ utils.inherits(CollectionResource, Resource);
  *
  * @param {Function} iterator
  * The function to call for each resource in the collection. Will be called
- * with `(resource, next)`. The `next(err, test)` function must be called to
- * advance to the next resource. If an `err` value is passed to next, the
- * iteration will stop and the `doneCallback` will be called with the `err`
- * value.
+ * with `(resource, next)`. The `next(test)` function must be called to
+ * advance to the next resource.
  *
  * @param {Function} doneCallback
- * The function to call when iteration has ended. Will be called with `(err,
- * test)`.
+ * The function to call when iteration has ended. Will be called with
+ * `(test)`.
  *
  * @example
  * // Does anyone like Brie cheese?
  *
  * function iterator(account, next) {
- *   next(null, account.customData.likesBrie === true);
+ *   next(account.customData.likesBrie === true);
  * }
  *
  * function doneCallback(err, test) {
- *   if (!err && test === true) {
+ *   if (test === true) {
  *     console.log('Some people like Brie.');
  *   }
  * }
  *
  * application.getAccounts({ expand: 'customData' }, function (err, collection) {
  *   if (!err) {
- *     collection.some(iterator, donCallback);
+ *     collection.some(iterator, doneCallback);
  *   }
  * });
  */
 
-/**
- * @name CollectionResource#someLimit
- *
- * @function
- *
- * @description
- * The same interface as `some`, but with a 2nd parameter that can be used to
- * limit the number of parallel workers.
- *
- * @param {Function} iterator
- * Same interface as {@link CollectionResource#some some}.
- *
- * @param {Number} limit
- * The maximum number of parallel iterator workers.
- *
- * @param {Function} doneCallback
- * Same interface as {@link CollectionResource#some some}.
- */
-
-/**
- * @name CollectionResource#someSeries
- *
- * @function
- *
- * @description
- * The same interface as `some`, but the `iterator` will be called in series,
- * not in parallel.
- *
- * @param {Function} iterator
- * Same interface as {@link CollectionResource#some some}.
- *
- * @param {Function} doneCallback
- * Same interface as {@link CollectionResource#some some}.
- */
-
 /**
  * @name  CollectionResource#sortBy
  *
@@ -920,45 +781,10 @@ utils.inherits(CollectionResource, Resource);
  *
  * application.getAccounts({ expand: 'customData' }, function (err, collection) {
  *   if (!err) {
- *     collection.sortBy(iterator, donCallback);
+ *     collection.sortBy(iterator, doneCallback);
  *   }
  * });
  */
-
-/**
- * @name CollectionResource#sortByLimit
- *
- * @function
- *
- * @description
- * The same interface as `sortBy`, but with a 2nd parameter that can be used to
- * limit the number of parallel workers.
- *
- * @param {Function} iterator
- * Same interface as {@link CollectionResource#sortBy sortBy}.
- *
- * @param {Number} limit
- * The maximum number of parallel iterator workers.
- *
- * @param {Function} doneCallback
- * Same interface as {@link CollectionResource#sortBy sortBy}.
- */
-
-/**
- * @name CollectionResource#sortBySeries
- *
- * @function
- *
- * @description
- * The same interface as `sortBy`, but the `iterator` will be called in series,
- * not in parallel.
- *
- * @param {Function} iterator
- * Same interface as {@link CollectionResource#sortBy sortBy}.
- *
- * @param {Function} doneCallback
- * Same interface as {@link CollectionResource#sortBy sortBy}.
- */
 (function extendCollectionResourceWithAsyncMethods(){
 
   function CallbackWrapper(argsLength){