I joined the Aftermath Campaign. I am linking it up here. Go and check it out.
The concept behind this campaign is really cool. It takes the form of an online forum, and narrates a monumental war in the Aftermath Sector between the Forces of Order and the Forces of Disorder. It gives the players an opportunity to take part in a larger narrative than just the game you are playing on the table. However, you continue to play your regular games with your registered army. Then, you post a battle report. Each win that you post contributes to the story of the conflict in the Aftermath Sector.
It is great fun all around. I recommend that you check into it. Especially if you are loyal to the Emperor and want to dispatch traitors and evil xenos.