It comes from my friends at SEOBook.com

Keyword Research & Competitive Analysis Tools Gadget

What will it accomplish:

Allows you to use all the major free keyword research tools from one location.

Links off to additional paid keyword research tools.

Links to popular competitive analysis tools and lesser known useful competitive analysis tools.

    Link Analysis Gadget

Allows you to:

Shows you the different ways to search for backlinks from the major search engine.

Allows you to see fresh citations from blogs via Google Blog Search and Technorati.

Shows reviews and citations from Del.icio.us, Digg, StumbleUpon, and Wikipedia.

Links off to additional tools.