Facebook recently released Lexicon which is like a Google Trends or Technorati for wall posts. Type in a word or a group of words, and you can see the buzz for those terms in a time series plot. Daniel sent me this excellent example. Type in party tonight, hangover and you'll get the above graph. Notice the Saturday spikes for party tonight and the Sunday spikes for hangover? Here's another one for finals:
It's interesting to see what people are talking about, and being Facebook walls, there's this realness to the charts (or maybe that's just me).
Go ahead. Give Lexicon a try. What interesting queries can you find?
P.S. You have to be logged in to use it.