Font for my website


Looking for a nice clean font for the main text on my site. With the site being responsive it needs to look clean and easy to read. Anyone got any Google Fonts or Fonts that they can recommend which are suitable please
I've been using Open Sans a bit. It only fits certain situations though (kind of like every typeface I guess).
I love Gotham, been using it a lot lately. No web equivalent as yet though I don't think?

Open Sans is good, using it on a new site design for a client. There's Ubuntu too which is fairly decent.