This mind-blowing CSS sniffing technique takes advantage of the changes in color for visited links. Display a set of links on the page, use Javascript to check if the color has changed - And voila! Browsing history captured.

Benevolent genius uses:
Personalize the your browsing experience by displaying only RSS aggregators / social bookmarking tools that you use

Evil overlord uses:
User profiling
Ad placement based on brand websites you’ve visited
Product recommendations

It’s so brilliantly cool, yet scarily powerful.

This entry was posted on Monday, February 18th, 2008 at 10:44 am and is filed under Geek Finds. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.