Google Profiles

Yep, there's lots and lots of places for an online profile, but I just set up my "Google Profile" and found it really easy and kind of fun. One aspect that I like is that Google Profiles aren't explicitly related to other applications such as the case with LinkedIn or Twitter. It's basically a simple landing page for you to show a little about yourself publicly then link to your contact info and other online places.

And given that it's hosted by Google, I'm sure that there's some SEO placement should someone be searching for you.

Here's my profile:
http://www.google.com/profiles/scottsambucci