I think the best logos are made in Adobe Photoshop by an artist. There are though a lot of premaid logos online, that you can modify with your own text on it and some are free:

Examples

• Powerlogos Design* |* Haig Branding
• Free with my hosting at ImHosted. Is it generally free?
• BannersGoMLM.com - And It's All FREE! - FREE 1:1 Banner Exchange, FREE MLM, FREE 5 Level Affiliate Program!

KW search:

"free logo" OR "free logo design"

or variations thereof.

And when you design your company logo, it is important to think of your websites favicon.

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Kjell Gunnar Bleivik:: Financial information at your fingertips
Learn object oriented programming where it started