Before you post that "Commit to Vote" logo on your Facebook page (as untold thousands have already done), you might take the time to find out where that link takes you.
Most will be very suprised to learn that it's set up by Organizing for America, a project of the Democratic National Committee. No kidding; just hit the logo and you'll see their tag line at the bottom of the page.
There's only one thing you can do on that page -- hit the "Yes, I Commit to Vote" bar. But if you do, the app you load gives a whole lot of your info (and who knows what else) to Organizing for America.
Sneaky? That and then some.
(Thanks to E. Calvin Beisner for the alert.)