1. A computer-implemented method for providing a full text search index, comprising: determining an active subset of a set of content items, wherein each content item in said active subset of said set of content items is associated with a respective one of a plurality of content item idle timers; determining an idle subset of said set of content items at least in part by reclassifying content items from said active subset of said set of content items to said idle subset of said set of content items responsive to expiration of their associated content item idle timers; making said idle subset of said set of content items available for indexing into said full text index, wherein said active subset of said set of content is not available for indexing; and resetting respective ones of said content item idle timers responsive to detecting that an operation is performed on said associated one of said content items in said active subset of said set of content items.
2. The method of claim 1 , further comprising: decreasing a time remaining in respective ones of said content item idle timers in response to detecting a user performing a specific operation on said associated one of said content items in said active subset of said set of content items.