Most players play at very few poker rooms online , all other poker rooms live parasitically, their poker ecosystem dies , or maybe most of their poker players are system poker room bots , to generate action and rake . I would recommend playing only in most well known big poker rooms online . Not in the smaller ones , some of which prove to be scam projects in the end stealing deposits .
I think last year's some new poker rooms opened online , although the market is the same I think , I don't believe the total number of poker players online has changed . The market is strictly shared globally among poker giants , and regulations help on this , yet some poker dwarfs want a piece of the pie lol