Visit the American Cancer Society's Web site for tips and tools on how to get the process started.

CNN: Simple test may determine smokers' lung cancer risk

Google gave web site owners some tips for optimizing their sites, which were part common sense and part its observations of how Instant Previews preformed during testing (short answer: users are 5% more likely to be satisfied with their search results if they get to preview the sites).

FORBES: Instant Previews Can Mean Instant Rejection

The recommender patents from Net Perceptions could benefit Ebay as an Intellectual Ventures investor, yet they could also be aimed at any Web site that gives shoppers tips on what they may like.

FORBES: Patent Stalker