1. A method comprising: under control of one or more processors configured with executable instructions, receiving multiple discussion threads that are to be presented in a discussion forum, each discussion thread having one or more posts; determining a most relevant post of at least one discussion thread; identifying the most relevant post of the at least one discussion thread along with text from a particular post determined as representative of the one or more posts of the at least one discussion thread as a title of the at least one discussion thread; ranking the multiple discussion threads based at least in part on a factor other than a time since a last post of respective threads of the discussion threads, wherein the factor comprises a stickiness of each discussion thread, the stickiness being a measure of how likely each discussion thread is to draw users to participate in the respective discussion thread; and serving the discussion threads for presentation in an order based at least in part on the factor.