One of the best ways to earn big pots in buy in or free poker online games is to know when and how much to bet. Easier said than done of course and one of the biggest mistakes I see in relation to this lofty goal is over-betting. There will inevitably be an occasion when playing where you have a great hand. To built up the pot, you need to keep other players in the game. But, as we all know, this is poker and there are times when it wont go to plan.