I'm an indie game developer currently in need of a little help. I'm working on a browser based strategy game alike tribal wars and I'm curious to know how are revenues earned from free browser games? I have read about portals and advertising but I am still not clear how those work and how much revenue those can net you. I do know about selling in game items for cash and I understand that well enough. I'm also curious about the difference about putting your browser game on sites like bbg.com opposed to simply putting your game on your own hosted server?

Any help will be apprecited.

I didn't find the right solution from the Internet.

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Thank you.