There is now improved interestingness calculation. Mems are sorted by number of content in meme + age. Also I fixed a bug that was causing duplicate content to be added to memetracker.
Major optimization improvement - Memetracker now stores distance scores in the database. This drops meme calculation time by ~75% once data is stored. Now it's possible to have 1000+ content active in a memetracker at any given time.
Fixed click recording for anonymous users. Next is to use this data to improve interestingness calculation.