I stumbled across LogoYes.com today, a site that lets you design a business logo right on their site and if you buy it (for $99) you receive all the gifs and jpgs - plus options for business cards and stuff. Here's a sample:

It's a cool site if you're a small business and don't have the resources for a graphic designer. I whipped up my logos in about 60 seconds. It's also dangerous too... I'm a guy who believes in good branding and design, and it'd be so easy for someone who doesn't know what they're doing to create a really, really lame logo. It's a great tool, but an unskilled small business owner could really do some damage to themselves. LogoYes.com thought of that already though - if you pay more up front, you can re-design you logo as many times as you want with no more fees.