Welcome to Ohloh!
You can use Ohloh without logging in, or having an account.
But with an account, you can do so much more:
Claim all of your commits to projects across all of Ohloh,
building a complete picture of your contributions to FOSS.
Create project "stacks" that detail your usage of FOSS,
and rate and review the projects you know.
and start building your FOSS profile — it's free!