I only got into baseball last year after watching a live game, been into football/soccer since I was a child. I learnt everything about baseball online and you can do the same for FM.
I recommend
Football Manager 2014 Tactics, Wonderkids & Cheats for a nice friendly forum with some great tactics.
Any general questions about the Beautiful game, I'm happy to answer them...oh and if you need an British team to support go with Sheffield United - the first 'United'!