Acid (Free for personal use only)
Acid was designed by Stephan Baum specifically to be used in logotypes and body copy. The form of glyphs is similar to the design classic B42 by Marcel Breuer (Bauhaus) and has a very geometric character. The font contains 103 glyphs, comes in six weights (regular, regular italic, medium, medium italic, bold and bold italic) and is in the process of being developed. Released under Creative Commons.

I just redesigned the theme of my page using this typeface (; check it.