Google Trends - Nice Tool

I Just got finished spending quite a bit of time on Google trends comparing some niches. I find it a usefull tool, but be careful because you can easiy spend way too much time at the site. It's been around for over a year, but for those who haven't heard about it or used it before I thought I would point it out here:

Google trends

The site can help you decide whether a niche is the one you want to really get into, whether certain keywords are what you want, when to use an ad campain as some niches are seasonal, and to find hot trends. Have fun.