Bingo is very popular in Sweden. It is a 2 billion a dollar industry - benefitting bingo clubs, associations and charities. Online bingo is estimated to be greater than 500 000 SEK. The swedish bingo market is obviously under-servered. The swedish bingo players tend to be one of the younger demographics on average, possibly second only to the UK. Swedish players are generally deligent about finding and researching bingo sites before they play and some operations have failed because they were not able to establish the repute and professionalism Swedish players are often looking for.
There is also a 3 round 75 ball bingo game called "Swedish Bingo". The first round is awarded to the first player with one row. The second round is awarded to the first player with three rows and the 3rd round is awarded to the first player with a full card. There are variations with progressive style maximum calls / round as well. The mathamatics of Swedish bingo is also different from American Bingo because the center spot on a Swedish bingo card has a number like any other spot (the spot is free on US style bingo cards.)
Paynova and Payson are popular payment processors in sweden.
You can also read more information about the Bingo Advantage Community in Swedish ( Gratis Bingo Advantage )