Can I just direct you to the excellent blog hosted by Man Of Mystery - see link on the right.
Plenty of interesting articles to read, whether you're angle is betting or trading - and updated on a daily basis.
He also broadcasts a radio show live on the internet once a week where he interviews various bloggers or others involved in the world of internet betting or trading. Next one is due this Wednesday with Leon The Fixer from the Don't Give Up Your Day Job. Don't think I'll be around during the day, but will try and catch it on the replay later in the week. Enjoy the show mate !!
Man of Mystery has also teamed up with Adam Todd of Racing Traders to run a competition to win free use of the Racing Traders application. Have used this myself in the past and it is excellent.
Check out the link on the right, and I'm sure you'll find something of interest.