Facebook is a fun way to pass the time, look at pics and catch up with friends. But who knew Facebook can improve your health too? Next time you're killing time online check out these Facebook pages to help you stay in top shape.

* Acuminder Add this free application to your page, and you¹ll receive a reminder in your inbox when it¹s time to replace your contact lenses or get an annual eye exam. Find it here!

* Family Tree Experts recommend drawing up a medical family history to determine which conditions run in your genes. Use this search tool to reconnect with those second cousins and other distant relatives. Find it here!

* GigPark Need a recommendation for a new dentist, dermatologist, or other health expert? Log on to this bulletin board to query a network of people in your neighborhood or city. Find it here!