Fumbbl: The Gathering is a small-ish group of noob friends playing for fun :)

Watch this for a tutorialish explanation of the game:
https://www.youtube.com/watch?v=zHSq3BR35JE

or this if your time is too valuable to waste:
https://www.youtube.com/watch?v=TTLCjFq3mac

or this if you like rulebooks:
http://cdn.akamai.steamstatic.com/steam/apps/58520/manuals/Blood_Bowl_Competition_Rules.pdf?t=1407400777

Go here for teams and build info:
http://bbtactics.com/strategy/races/