Twitter-icon.com has a great selection of twitter icons and buttons.
Site: fedoraunity.org (Welcome to the Fedora Unity Project — Fedora Unity Project)
The Fedora Unity Project has been created by concerned peers in the Fedora Community to bring quality solutions to the Community. Members may include site maintainers, Fedora Project contributors, and interested users.
Do you have a twitter account? If so it's important
to get as many people as possible to follow you.
Great follow me icon captures attention of the visitors
and brings more followers to your twitter account.
Choose great twitter icon for you website!