The Wall Street Journal reports that a small group of on-line tracking companies are forming a project to enable those being tracked to see their profiles, and to opt out of tracking. The project, called the "Open Data Partnership" will launch in January. It membership consists of eight tracking firms including BlueKai Inc., Lotame Solutions Inc. and eXelate Inc. Because this program does not include the majority of companies which track users it is unlikely to have a significant impact on your actual privacy, but it is a worthy experiment and I hope many people will take advantage of it to opt out of at least this tracking.
On-line ads covered by this program will be marked with a small "i" in a blue triangle. If you click on that you should be able to see and modify your stored information, profile, and tracking options.