Here are some of the websites I read for deals and free samples. Some are blogs and others aren't. I really don't like the ones you have to sign up for to see the deals. These are really easy to navigate.
http://www.stretcher.com/index.cfm (This one has more articles and ways to save money)
Not to overload the post, I'll stop here. I have others, too. But these have seemed to be pretty useful.