Any Communist timeline or story here?

As others have said, Reds! and Bayonets Won't Cut Coal are fantastic timelines exploring successful revolutionary movements in the US and Britain respectively. Other decent revolutionary socialist timelines include:

Wir Sind Spartakus - a timeline about a successful revolution in Germany
War of the Classes: A Gilded Age Timeline - a fantastic, but unfortunately dead, timeline exploring a revolutionary workers movement along the vein of the Paris Commune emerging in the US in the 1800's

And one day I'll write my Italian Revolution timeline... one day.