Terms of Service

basically unless you specify in your privacy settings, any information or content you post belongs to them.  In the case of “intellectual property” and all the games/ apps people play on FB read on:

the following was taken from :

“http://www.facebook.com/terms.php?ref=pf”

  1. For content that is covered by intellectual property rights, like photos and videos (“IP content”), you specifically give us the following permission, subject to your privacy and application settings: you grant us a non-exclusive, transferable, sub-licensable, royalty-free, worldwide license to use any IP content that you post on or in connection with Facebook (“IP License”). This IP License ends when you delete your IP content or your account unless your content has been shared with others, and they have not deleted it.
  2. When you delete IP content, it is deleted in a manner similar to emptying the recycle bin on a computer. However, you understand that removed content may persist in backup copies for a reasonable period of time (but will not be available to others).
  3. When you add an application and use Platform, your content and information is shared with the application. We require applications to respect your privacy settings, but your agreement with that application will control how the application can use the content and information you share. (To learn more about Platform, read our About Platform page.)
  4. When you publish content or information using the “everyone” setting, it means that everyone, including people off of Facebook, will have access to that information and we may not have control over what they do with it.
  5. We always appreciate your feedback or other suggestions about Facebook, but you understand that we may use them without any obligation to compensate you for them (just as you have no obligation to offer them).

so… just be cautious on what you post up.