www.soccerway.com: One of my favourite sites. More or less every league in the world catered. Shows league tables, head to heads, form tables and results. Great resource for studying various world wide leagues.
www.livescore.com: One of the most popular livescore sites. Seems to have slowed down a lot over the past few months and doesn't seem to be as on the ball as a lot of other sites.
www.physioroom.com: To find out whos injured and when they're due back.
Add your own links which you use in your ongoing pursuit to make the bookies weep like big girls.