Evo has gone from being a relatively small scale passion project to a phenomena enjoyed by millions, but it only happens once a year. Thankfully, we have Saltybet to fill the empty spaces in the remaining 362 days in the year. When there is an actual tournament, the site will broadcast the event and let you bet fictional funds (measured in long running Capcom currency "Zenny") on the matches as they happen.
When there are no real fights to broadcast, you can bet on computer controlled MUGEN matches instead. I'm watching a fight between Popeye and Boba Fett right now. My understanding is that you can also bet real money on these matches, but I would never encourage that.
The chat in this thing never seems to die down, with the stupidest match ups generally garnering the most enthusiasm. I wonder how real eSports athletes feel knowing that more people might tune in to a match between A.I. controlled Bayonetta against A.I. controlled Homer Simpson than their real displays of fighting game skill?