Ray Larabie: The typographer distribute freely his work, but for download, it is compulsory to register at myfonts.com.
WC Fonts, French community distributing some free fonts.
Read the license associated to these fonts: They are free but some can only be used under certain conditions (For example Manfred Klein: Free for non-commercial use and for commercial uses, it is mandatory to make a donation to NGOs).
The use of fonts on the web pages
If you use a font in an image, a Flash movie or a PDF document, you must pay the license for its use (which is not the case when using a font for your HTML, CSS coding).