All of us who have experienced difficulties navigating our way round a poorly constructed website will know just how frustrating that can be, but it does clearly show how important the operating software is to any internet site operator. Inefficient software leads to unhappy customers whether they are simply seeking information or actually trying to make a purchase. When it comes to online casino sites the casino software is of course even more important, because the software is not only responsible for managing the site efficiently and securely, it is also responsible for the product on sale. Almost all the casino games we find at the online casinos have been designed by the online casino software companies. Even the traditional casino games such as roulette and blackjack, although clearly not invented by the casino software suppliers can be enhanced or otherwise by the computer graphics used to display the game. The fact that good online casino software is so important to the online casino sector has led to the formation of specialist online casino software companies whose activities are almost totally confined to the design and development online casino games and the necessary operating procedures. Some of these online casino software companies have become major internationally recognised companies in their own right as a result of the boom in online casino games playing throughout the world, and Playtech in particular has grown into an extremely successful company. Some regular casino games players have become concerned that the big online casino software companies now dominate the sector too much, leading to the same casino games appearing on several online casino sites and so reducing customer choice, but there are still alternatives to be found. Paddy Power for instance use Cayetano casino software, and both the All Irish casino and the No bonus casino use Netent software so there is still plenty of choice for the Irish casino games players.