I've written up a number of these issues. Here's one where you can use Likes to determine quite a bit with minimal effort: https://caseysoftware.com/blog/social

I've written up a number of these issues. Here's one where you can use Likes to determine quite a bit with minimal effort: https://caseysoftware.com/blog/social-apis-for-social-evil https://caseysoftware.com/blog/social-apis-for-social-evil