We just set up a family website through
www.blogger.com. It was very, very easy. I didn't run it as a "we are looking to adopt blog," but it had info about my DH and I and I posted about once a week with photos and info about our families and what we were doing that we (trips we took, fun things we did, etc.)
We then put the URL address in with our agency profile so e-parents could get some more info on us if they wanted to. We also gave the address to family members so they could check in and see what we were doing and how the adoption was going.
Now, I use it to post weekly updates about our DD in case her bio family wanted to check it out (they don't really, but I don't think they're that tech savvy). I like the blog format, because it’s kind of like a journal of your experiences that you’ll always have instead of a website you change constantly.