Humanist Sans Serif Typefacehttp://code.google.com/webfonts/family?family=Open+Sans
Open Sans is a humanist sans serif typeface designed by
Steve Matteson, Type Director of Ascender Corp.
This version contains the complete 897 character set, which
includes the standard ISO Latin 1, Latin CE, Greek and Cyrillic
character sets. Open Sans was designed with an upright stress,
open forms and a neutral, yet friendly appearance. It was
optimized for print, web, and mobile interfaces, and has
excellent legibility characteristics in its letterforms.