They just called... woke me up. But I didn't answer. It's 9am on a Saturday!!!!!!!!!!

You can have them remove your number:

http://www.opinionsearch.com/research-participants/call-list-removal

I got 5 calls from these people... Twice on Saturday mornings at 9am as well. I answered the first time and they asked if I wanted to take part in a focus group and I told them I wasn't interested. Then they called 4 more times (didn't they understand when I said no?), so I kept ignoring the call.
Thankfully I found this forum and saw the link to remove myself from their call list...

A lady called me  today (7/26/2007) and ask me lots of questions but I can't hear any thing from her and I hang up. I google the number and found this out.

Thanks for posting the website!