For those who want to see what's hot right now in searches from Google can now see it @ http://www.google.com/trends Read the following to get a better idea of how it works:Google Meme: Hot Trends Added To Google Trend Why this is useful? As a webmaster, it makes sense to know what a good market is to target at times and with the multiple updates this may end up being more useful than Yahoo's Buzz
I don't think these are THAT useful since they are hot trends for a day, as mentioned on the site. Exceptions aside almost all of the keywords will have little significance the next day.
I rode the Antonella Barbra train for like two weeks with the Hot trend. It gave me over 1500/day for the period thanks to this.