The Internet opens the access to virtual gaming resources. Games of chance occupy important positions of the overall number of computer games. As a rule, these games are assembled on special Internet gambling sites. Modern online gambling sites contain virtual resources to play high rating games of chance with no need to download software; the whole variety of popular games of luck is made available here: roulettes, card games, lotto etc.

Roulette casino is a web page containing animated roulette cylinder and the layout. Users may either play trial games for practice or buy chips and place bets. Poker casino present all most played poker variations, such as Omaha, Texas Hold'em, 7/5 Card Stud and others. Online poker betting is mainly based on the game rules. Online poker gambling implements convenient gaming conditions. Lotto casino gambling involves making contributions into the common game pot. The whole pot is shared among winner(s) according to the lotto rules.

Each registered online casino user is given a separate account supervised by the website administration. Lost funds are withdrawn from accounts, won money are paid back either on the accounts or in cash. Online casinos administration works out special bonus programs for active players. Bonus is a promotion meant to raise funds amount on the account. Bonus money can not be cashed; it can be used for betting purposes. In fact, the majority of online gambling sites have certain common elements in the general structure: alternative to play free versions of games, technical support, communication facilities, direct links to other gambling resources and other characteristics.