9. A machine-readable medium comprising instructions stored therein, which when executed by a machine, cause the machine to perform operations, the machine-readable medium comprising: instructions for receiving an online question by an asking user; instructions for identifying one or more topics of the received online question; instructions for matching at least one canonical content item from a plurality of canonical content items to the received online question based on the identified one or more topics, wherein each canonical content item of the plurality of canonical content items includes a model explanation of a topic, wherein each model explanation comprises an asked question portion and a corresponding answer portion, and wherein each canonical content item is based on a set of similar content items from a plurality of content items; instructions for providing the asked question portion and the corresponding answer portion of the matched at least one canonical content item to the asking user; instructions for executing one or more clustering techniques over the plurality of content items to determine each set of similar content items, wherein the plurality of content items relates to user-submitted online questions and corresponding user-submitted online answers; instructions for compiling the plurality of canonical content items based on a curating process associated with one or more clusters of content items from each set of similar content items from the plurality of content items; and instructions for receiving a rating, by the asking user, for the matched at least one canonical content item, wherein the rating identifies the asking user's approval of the model explanation of the topic associated with the matched at least one canonical content item and is used as a factor in the curating process associated with the one or more clusters of content items.
9. A machine-readable medium comprising instructions stored therein, which when executed by a machine, cause the machine to perform operations, the machine-readable medium comprising: instructions for receiving an online question by an asking user; instructions for identifying one or more topics of the received online question; instructions for matching at least one canonical content item from a plurality of canonical content items to the received online question based on the identified one or more topics, wherein each canonical content item of the plurality of canonical content items includes a model explanation of a topic, wherein each model explanation comprises an asked question portion and a corresponding answer portion, and wherein each canonical content item is based on a set of similar content items from a plurality of content items; instructions for providing the asked question portion and the corresponding answer portion of the matched at least one canonical content item to the asking user; instructions for executing one or more clustering techniques over the plurality of content items to determine each set of similar content items, wherein the plurality of content items relates to user-submitted online questions and corresponding user-submitted online answers; instructions for compiling the plurality of canonical content items based on a curating process associated with one or more clusters of content items from each set of similar content items from the plurality of content items; and instructions for receiving a rating, by the asking user, for the matched at least one canonical content item, wherein the rating identifies the asking user's approval of the model explanation of the topic associated with the matched at least one canonical content item and is used as a factor in the curating process associated with the one or more clusters of content items. 10. The machine-readable medium of claim 9 , wherein the matched at least one canonical content item comprises a group of matched canonical content items and wherein the instructions for providing the matched at least one canonical content item to the asking user further comprise: instructions for providing the asked question portion of each of the group of matched canonical content items to the asking user; instructions for receiving a selection by the asking user indicating one of the provided asked question portions of the group of matched canonical content items; and instructions for providing the corresponding answer portion of the indicated one of the provided asked question portions of the group of matched canonical content items.