Google Correlate by Drawing 
Interesting to see what is dying: English Chinese Dictionaries, radio stations, Altavista, lyrics, text messaging, Flash.http://www.google.com/trends/correlate/search?e=id:deVob01-p...And look what's getting more popular: Porn video sites, video sites, Facebook, Mac computers and how to work them -- particuarly how to take screenshots: this should be a tip-off to those of you working at Apple doing UX. ;)http://www.google.com/trends/correlate/search?e=id:AbjtmD0iL...Some of the stuff you would guess was becoming less or more popular but there is other stuff which is less obvious.edit: This is super interesting:
http://www.google.com/trends/correlate/search?e=id:SnghYCuBW...Looks like Hacker News is gaining popularity exponentially, too. :)