My hacky Twitter robot got 10K followers behind my back
whotrended.it
whotrended.it
Also yes he could definitely do some text mining on the trending topics, that would be an interesting topic.
http://whotrended.it/top-trends
the first by far is #tcot so apparently conservatives are doing well on Twitter.
For the analysis I think one year of data is probably a bit on the short side. But if I let it run for a decade (providing Twitter is still used by then), we'll definitely see a generational effect that could be interesting.