Microsoft released a monster 64-mb keyword research tool tonight - download it here. The free tool, still in beta, is a culmination of research conducted at their Pac Rim adLab. It's called the Microsoft adCenter Add-in for Excel 2007 - and (obviously) you'll need Excel 2007, which Microsoft offers as a 60-day free trial.
Plans for the product were discussed in December at Search Engine Strategies Chicago.
Introducing SES Online
Want to view one of the sessions you missed or listen to an especially informative presenter a second time? SES New York sessions are available for purchase on ClickZ Academy's new e-Learning site. SES is now Online!