From Git SCM Wiki

Blog posts on Git (usage)

A lot of blog posts related to Git usage have been published since the project's birth. This page attempts to maintain a collection of contained and useful single posts which solve specific problems. Please try to make the link description as accurate and descriptive as possible.

Setup

Switching to Git and SCMs interaction

Portability

Usage

Advanced stuff

Praise

Like everybody else, the git developers like to be praised from time to time, too.