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Quora

As I write this, Quora (www.quora.com) is all the rage. Quora is a question-and-answer site with a Wiki twist. (See Figure 17-9.) Users can post any question, assign and remove topics for those questions, and answer questions from their friends and topics that they follow. They can then vote up the answers from people who provide the most interesting and relevant answers to those questions.

Figure 17-9: Clicking the Up button next to an answer allows you to like the answer on Facebook.

Quora, founded by one of the founders of Facebook, should have no excuse not to integrate Facebook. Indeed it does. In fact, it uses some undocumented features that I share in a bit. Quora's very simple Facebook integration just allows users to associate a Facebook account and post answers or questions to their friends on Facebook through the news feed.

However, Quora does a couple of more advanced things that I really like:

• Quora pulls in your Facebook friends list and organizes your news feed through it. You might notice after you associate a Facebook account on Quora that you start to get e-mail updates about all your Facebook friends following you on the site. This is because they're immediately being presented with a list of their Facebook friends to follow on the site when they do the same. You get regular e-mails, and you're constantly reminded that Quora is getting a lot of use by your ...