Ping.fm is a simple service that enables you to update just about all your social networks. Use AIM, Google Talk, iGoogle, WAP, iPhone/iPod Touch, SMS or E-mail and let Ping.fm relay your message to a multitude of social networking sites such as twitter, jaiku, wu, tumblr., Pownce, Livejournal, Blogger, Mashable, Xanga, plaxo, brightkite, facebbok, myspace.com, identi.ca, hi5, bebo, friendfeed, and Linkedin.
I did say Biz Message in the title of this post because many people don't realize how valuable and how natural business development and networking can be on social network sites. I've always wanted to see a good debate regarding this topic as to which social networking sites feel and seem the most conducive to natural business networking, (not forced).