There is a new Tim Keller Wiki, assembled (naturally) by Keller fans. Think you know your Keller? You can submit a brief bio and be considered as a contributor. The Wiki is well-organized and has links to Keller’s books, articles, audios, and videos.
For example, if you are looking for all the videos related to The Reason For God, you can find them all here.
(HT: Abraham Piper)