Insidecrm has a wonderful post on 100 tools and tips on Facebook Marketing. It is an exhaustive collection and covers most of the important links which would assist you to understand the nitty-gritty of Facebook marketing.
Some of the popular ones include:
# How to Effectively Advertise on Facebook
# Social Networks Find Ways to Monetize User Data
# Facebook Marketplace
Check-out the post right now on INSIDECRM
http://www.insidecrm.com/features/facebook-marketing-toolbox-012308/
I found your site on technorati and read a few of your other posts. Keep up the good work. I just added your RSS feed to my Google News Reader. Looking forward to reading more from you.
Matt Hanson