In a rare occurrence for free type families, you can download the whole 18 fonts that make up the extensive Exo. The font comes in thin, extra light, light, regular, medium, demi-bold, bold and extra bold, all with matching true italics. All weights have small caps, alternates, ligatures and different number formats in the open type system. The combinations of the different weights lend this to being able to be used in a large range of products. The font itself is a geometric sans-serif similar to Klavika (the Facebook font).
ndiscovered :: Exo Font Family.