7. A system comprising: one or more processors; and a memory including instructions that, when executed by the one or more processors, cause the one or more processors to: receive an online question by an asking user; identify one or more topics of the received online question; match 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; provide the asked question portion and the corresponding answer portion of the matched at least one canonical content item to the asking user; execute 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; compile 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 receive 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.
7. A system comprising: one or more processors; and a memory including instructions that, when executed by the one or more processors, cause the one or more processors to: receive an online question by an asking user; identify one or more topics of the received online question; match 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; provide the asked question portion and the corresponding answer portion of the matched at least one canonical content item to the asking user; execute 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; compile 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 receive 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. 12. The system of claim 7 , wherein the instructions, when executed by the one or more processors, further cause the one or more processors to perform the curating process by selecting at least some canonical content items of the plurality of canonical content items by synthesizing a set of content items from the one or more clusters of content items into a single content item.