Looking for a free webhost...

I'm trying to find a free webhost for a tech site I'm hoping to get started. I need a message board, a blog, and a general information page. I'm getting a domain from here (http://www.co.cc/) hopefully, and I want to know if it's possible to get a wordpress.org blog up on HelioHost.
Also, is it possible to get multiple authors for this site?
Help?
Oh, and I have the site sort of going here (you'd be surprised how many wordpress domains have been taken)http://amazingtech.wordpress.com