The first thing to do with Git
When you install Git, the first thing you should be doing is setting up your user details.
The git tag has 10 posts
How to: Migrate your SVN repository to Git
You've probably heard a lot about how awesome Git is from all the cool people who are already using it. If you want to be part of the trendy crowd but feel tied down by your old Subversion repositories have no fear; Migrating all of those SVN repos to Git could not be easier and you get to keep the entire commit history of your project.
How to: Delete a remote Git tag
You probably won't need to do this often (if ever at all) but just in case, here is how to delete a tag from a remote Git repository.
How to: Git stash
You are busy programming away in the middle of a task and suddenly something urgent comes up. If you are awesome enough to be a Git user then you needn't fret, just use git stash.
How to: Cherry-pick changes with Git
Here's the scenario: You're working in a feature branch that isn't quite ready for a full merge but you do have a few commits in there that you want to push to master (for a release or whatever reason). This is just one of possibly many situations where making use of Git's cherry-pick command might prove useful.
Git: Amend your last commit
Git has a number of awesome features; Not least of all is the ability to amend the previous commit. If you ever find that you accidentally left something out of your last commit, be it a file or an extra change to a file that you just committed, don't worry. It can easily be fixed 
Deploy from a Git tag with Capistrano
Are you using Capistrano and Git and want to easily deploy from Git tags? It couldn't be simpler 
How to: Colours in Git
Bored with just black and white in your git status? Add some colour!
Introducing Claptrap
A couple of weeks ago I deployed my first Rails app; The Claptrap site 
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How to: Meld for Git diffs in Ubuntu Hardy
Are you using Git in Ubuntu and want to use an external visual diff viewer? It's easy! I will be using Meld for this example but most visual diff tools should be similar. If you don't already have Meld, then install it: