As I mentioned earlier, I'm trying to get more involved in football trading and one of the best resources, if you haven't come across it already, is the blog run by Ads and Bingo aka, The Nugget Crew.
Not only do they offer a 'trade of the day' well in advance of the match itself, but the frequently hold chat sessions in the RacingTraders room on the Paltalk network. It's a pity they use this chat network since, as a Linux user, I have to access it via a website which is wholly based on Flash. As a result, it is unstable and frequently bombs me out, crashes Firefox taking other sites with it. Sorry, I digress...
Their advice is excellent, though I haven't made any money yet. That's more to do with me exiting the markets way too early coupled with lack of experience on how the football markets behave. The difference between the slow, reasoned approach of the correct score markets for example and the quick fire, in-out nature of the pre-race dog markets will take a while getting used to. Just listening to these guys describe their trading and assessment of how a match is progressing is a huge help.
They are ultimately planning to go to a subscription based model, so nip over to their site quickly to get a flavour of what they do.
While I'm on the subject of other helpful sites, if you're into tennis then TradeShark does a similar thing on his blog, i.e. gives recommended matches and strategies to trade.
I personally haven't had the time to get involved in the tennis, but I'd recommend you pay his site a visit.