This article was passed onto to me, and if you are a serious online gamer, it is definitely one to check out. It talks about the trends on online gaming, the vast majority dealing with MMO's directly.

After years waiting in the shadows, online games are now generating significant revenue. According to the just released DFC Intelligence Online Game Market Forecasts, subscription revenue from online games was $2 billion in 2005 and is expected to grow to $6.8 billion by 2011.

Furthermore, subscription revenue is only one part of the online game business equation. Advertising and digital distribution revenue are also expected to grow significantly.

Very interesting read. Check out the whole in depth article at Next Generation!