If you use Facebook, running this tool is a pretty good idea. It’ll at least let you find out exactly what parts of your profile are exposed where and to whom. With the steady diet of privacy setting changes that require opting-out instead of opting-in, you might be surprised where your Facebook information stands in the public/private online sphere.
From the link:
About a week ago, as frustration with Facebook and its privacy settings reached its pinnacle, Matt Pizzimenti, a software engineer and cofounder of Olark.com, launched ReclaimPrivacy.org, a site that scans your Facebook settings and warns you of what information you’re exposing to the public.
“I felt that [Facebook’s] navigation was too complicated to explain to my less-technical friends and family, so I built this tool to help them quickly see their privacy settings and change them,” Pizzimenti says.