Two popular social networking sites are LinkedIn and Facebook. While both are designed to connect people online, the two sites represent different types of connections with very different options and features.
“The Facebook social networking site is used to connect with a variety of people — your friends, family and those you work with, go to school with, or people you used to be friends or classmates with. In a general sense, where LinkedIn is designed to connect professionals, Facebook is designed to just connect people. When you join Facebook and create a profile, you will enter in key information which can help other people find you on Facebook.”
Did You Know… The Difference Between LinkedIn and Facebook?
By Vangie Beal, May 16, 2008
Nova Scotia Girl [ Freelance Writer ] 
LinkedIn has never really done anything for me I have to say, it is more a search tool. It left the social out of the equation and is just a network. Whilst facebook achieves some connectivity and community it still has a long way to go before it satisfies the true potential of a Social Network.
I would agree with you. I kind of look at my LinkedIn profile as my resume — it is great for that, but it really doesn’t have the same appeal that Facebook has.
Linkedin is really taking off, they just made About.com’s top 10 employement site list too. (alphabetical order)
http://www.careerbuilder.com
http://www.craigslist.com
http://www.hotjobs.com
http://www.jobfox.com
http://www.indeed.com
http://www.linkedin.com
http://www.monster.com
http://www.realmatch.com
http://www.simplyhired.com
linkedin.com and a site called Realmatch.com are the 2 newest additions.
http://jobsearch.about.com/od/joblistings/tp/jobbanks.htm