Roboto is an open-source typeface created by Christian Robertson and published by Google Font. Roboto is design workhorse that is especially popular on the newspaper websites.
This sans serif makes long paragraphs thoroughly legible and it works well for the menu and footer.
Google Maps y Google+ use Roboto in their layout.
ALTERNATIVE FONTS
Dagny
BEST USED FOR
Logo, title, menu, footer, body of text