Turns out lots of folks are dumping LinkedIn in favor of Facebook.  Jeff Pulver actually wrote a post today titled, “Goodbye LinkedIn. Hello Facebook.“  Interesting post, check it out.  Why the switch?  Jeff explains,

I find that the interactions I have through Facebook are at once more rewarding and more nuanced and meaningful than what I experienced on LinkedIn. And in fact, in many cases it is easier to communicate with someone on Facebook than on email. Facebook IS the internet portal of 2007. And it is where you will find me.