While currently there are very few online gambling sites in Canada and none that are independently owned, it remains to be seen whether the respective authorities start to pass their own act to allow this to happen. If the governments start to realize that there are benefits to offer this, as has happened in numerous US states, then this might start to change.
As far as gambling laws in Canada are concerned, much like in the US, there is somewhat of a grey area, in the fact that it varies by state in terms of what you are allowed to do. Over the last couple of years, online gambling in Canada has gradually opened up and this again falls into what states allow certain elements of gambling.
Because of this, several forms of gambling and betting have been legalized by the Canadian government and respective authorities and this also relates to internet gambling. What is important to remember is that gambling operators who offer their services to Canadian players are not allowed to be based in the country itself, however, they can be based offshore if they are licensed by particular regulators, such as the Malta Gaming Authority and Curacao e-gaming, in addition to some of those that are regulated by the UKGC (UK Gambling Commission).
However, there are also those offshore casinos that have their servers running from the native reserve of Kahnawake, (under the purview of the Khanawake Gaming Commission) which is still technically located in the country, and as a result, this is one way that some of them get around it.