37signals launched a new version of their project management web app, Basecamp, on March 6, 2012. The extensive site introducing the product uses self-hosted(?) Proxima Nova webfonts almost exclusively — just like the app itself.
See the Basecamp logo.
Also, the typeface Whitney by H&FJ is in use for their logotype.
Thanks for reminding me to add the logo to the Collection, J. It’s now up.
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