Cloning this repository:

git clone git://gitorious.org/utterance/utterance.git utterance
cd utterance

Add this repository as a remote to an existing local repository:

git remote add utterance git://gitorious.org/utterance/utterance.git
git fetch utterance
git checkout -b my-local-tracking-branch utterance/master_or_other_branch

Cloning this repository:

git clone git://gitorious.org/utterance/twitter.git twitter
cd twitter

Add this repository as a remote to an existing local repository:

git remote add twitter git://gitorious.org/utterance/twitter.git
git fetch twitter
git checkout -b my-local-tracking-branch twitter/master_or_other_branch