I first learned about About.me from a BzzCampaign as part of being a BzzAgent.
It's a great way to create a page that connects to your Facebook page, Flickr account, Twitter page (and more!) all at once! Every about.me page is customizable and personal. Here's mine:
One of my Facebook created one for her job search. I've been using it as part of my email signature... easiest way to tell people who I am and what I'm about (and as you probably already know, that's social media!). If you check it out, let me know what you think!