Rabbit info?

I just got 8 rabbits from a individual. She was no longer able to care for them and I was already planning on getting one as it is, but i ended up with 8, I am prefectly happy with that but I am wanting to know how to care for them how much should i feed them each, how often, how can i tell the , how do i know if they are pregnant or not. I have been doing a TON of reasearch on the internet and have learned alot but still want info from ppl who have rabbits or breeds them. Any good websites would be awsome. also we just put a simple hutch togther with some boards for now, what kinda shleter should I make for them or get for them. I have a shop/game room area in my back yard, (it is well insulated, fan, light it can really be another living area, but we are making that into our rabbit shelter. Any advice, or info would be GREAT!!