Totally agree with this. It's nice to have something to point at for writing samples, to show some experience in a field, and to get ahold of you.

I have a link aggregator (Bento.me) that points to my blog, GitHub, cool projects to get involved with, etc. I feel like this also shows a level of enthusiasm / involvement with the field / community as a whole as well.

I saw your other comment and also agree with the email exclusion. My blog has the ability to have comments, my GitHub has open repos, and there is a calendar link. If someone wants to dig for my email they can (as it's very public at this point lol), but I'd prefer it not be the main route I handle online comms through from people reaching that link agg.