Google Insigts http://www.google.com/insights/search/

Basically google insights is a vastly improved version of trends and is excellent for comparing keywords and competition keywords so you know exactly where to focus your site and your hard graft!

New features like ‘rising searches’ show new popular terms that are building in popularity daily excellent for jumping on the bandwagon and seeing what the world is looking for.

The main advantage of Google insights is the geographical nature of the tool, with regional search specific you can look at your region specifically rather than global trends. This is especially useful for local business.

Google Keywords has been beefed up as well to coninside with the new google insights launch so with the combination of the two tools you are armed to the teth and ready for SEO for free by google.com

Keep up the good work google and thanks for such a great tool!