Those wanting to get into Facebook development might want to check out this new site Hasin Hayder has been working on - a Facebook Cookbook (not affiliated with the O'Reilly book by the same name). He talks about it here.
So i am planning to star writing an open book (right now it is a blog, when we will have thousands or recipes we will make it a book) which will follow cookbook approach for Facebook application developers. I will highlight common problems (there are numbers of problems with no solutions in their wikis) and their solutions which I've learned in my last one and half year journey as an application developer on Facebook platform.
Several topics have already been covered including: