Tanzania National Park and Harry Belafonte's daughter
I'm sure Alta Vista were doing this 10 years ago, Google developed
Google Trends today by adding
Hot Trends, with a top 100 for any particular day. These aren't the top 100 search terms today, they are the search terms whose occurence has increased most compared to their usual occurence.

Most are hard to understand but there is a
Google group dedicated to trying to explain them.
Judging by the speed that Google indexes blog posts (a couple of hours usually) you could gain a lot of traffic by following this each day.
Labels: google, search