Although many online gambling providers write their own software for sports gambling it is very rare for online casino software to be written by anybody other than one of the specialist companies that do nothing else. Online casino gambling is very popular and it is quite possible and in fact quite normal that you have never considered which casino gambling software you are using as the choice you make is which online casino to use but in fact when doing that you are deciding which casino gambling software to use. You may have noticed that one provider of online casino gambling looks very similar to another and this is because the two online casinos are in fact using the same casino software from the same supplier with what is called a different “skin” which means branding; Bet365 and BetFred are examples of this as they both use Playtech casino software. Other major suppliers of casino gambling software include such names as Microgaming, NetEnt (used by All Irish Casino), Chartwell and Wagerworks and nearly all major players in the online casino gambling market use one of these or sometimes a combination of them for different parts of the site. The fact that these online casino gambling companies use the same casino software can be a good thing for casino slots players who enjoy the progressive jackpot slots as the jackpots build that much faster with all online casinos using the software contributing. Casino gambling slots jackpots are created by all spins on all contributing jackpot machines contributing a small amount to the pot and often you will notice that more than one slot is contributing to the same jackpot. This also goes some way to explaining why online casinos are pleased when their player hits a jackpot as it has cost them no more than if a player from another online gambling casino provider had hit it.