I've used this site,
Vistaprint, myself for a few printing projects and did order a set of their
free business cards (you just pay for shipping) - they offer some nice free templates or you can upload your own logo, etc. - just be careful with image resoultion and size when you do so!
It looks like now they are offering free rubber stamps, free sticky notes, free checks, etc. - haven't tried those but they may be worth checking out as well.
The free business cards carry a small ad for the website on the back but are otherwise completely YOUR business info. They're a nice way to get started without a big investment and/or design experience.
(For those who are into design or want to learn
Illustrator has a nice tutorial and template for business cards - sheets of them if you want to create and print your own or have a place like Kinko's print and cut for you [last time I printed at Kinko's they charged me about $50 for 250 cards - printing and cutting] or you can just create the one card in Illustrator and upload the whole thing to Vistaprint)