well, let's see... there's:
dailypaul.com
ronpaulforums.com
ronpaulforum.com
libertarians4paul.com
primarilypaul.com
ronpaulhq.com
ronpaulnation.com
ronpaulnewengland.com
ronpaulforpresident2008.com
ronpaulpresshub.com
ronpaul.rescue-us.org
paulforronpaul.com
lds4ronpaul.blogspot.com
rp2008.blogspot.com
christiansforronpaul.com
catholicsforronpaul.blogspot.
com
ronpaulregistry.com
voteronpaul.blogspot.com
ronpaulrevolution.com
veteransforpaul.org
ronpaullibrary.org
ooh, can't forget the official site, ronpaul2008.com

then there some not specifically Ron Paul related sites
reason.com
lewrockwell.com
fark.com
politicalcrossfire.com
townhall.com
freemarketnews.com
a couple of conspiracy-ish ones:
theagitator.com
prisonplanet.com
rense.com
That should get you started!