What are some alternatives?
When comparing Open Font Library and Fontspace, you can also consider the following products
Font Squirrel - Font Squirrel scours the internet in search of FREE, highest-quality, designer-friendly, commercial-use fonts and presents them for easy downloading. We don't have the most, but we do have the best.
Google Fonts - Making the web more beautiful, fast, and open through great typography
Befonts - You can download the best fonts, free fonts for personal or commercial use.
Fonts.com - Fonts.com provides the biggest and best selection of high quality desktop and web fonts. Try, buy and download classics like Helvetica, Univers, Frutiger, Trade Gothic and Avenir along with popular new fonts like Soho and Neo. Find your type!
TypeCatcher - TypeCatcher allows you to search, browse, and download Google webfonts for off-line use.
Typekit - This will change the way you design websites. Add a line of code to your pages and choose from hundreds of web fonts. Simple, bulletproof, standards compliant.