From the site itself:
A lot of us have multiple online profiles scattered across various services, including Facebook, LinkedIn, Flickr, and Twitter. And one problem we face is pulling all of this information together to build a single on-line identity — be it for personal use, or to create a professional on-line profile.
My about.me page can be found here.
You also get a pack of MOO business cards for free and pay only shipping if you sign up. Each card can have a different image if you choose, or you can get a matching set.
*NOTE - I am a BzzAgent and was invited to try this service. All opinions are my own!