Yeah, I generally hate microtransactions, but I know that Facebook games can be incredibly profitable. It might be worth sacrificing a small bit of your soul to keep the company running and hopefully fill your new swimming pool with 100$ notes.
Then again, I'm not suggesting you should be exploitative, I guess it can be done ethically.
http://www.interstellarmarines.com/
Those guys did some pretty nice demos of their upcoming game in a browser. It is a 3d shooter and it looks and plays really great in the web player.
The suggestions and ideas are coming slowly and Facebook is definitely a trendy media at the moment which enjoys high profile traffic. I personally, however, shudder at the thought of opening the floodgates of the Farmville community upon us, but I guess that is how commercialism works ultimately. I was a prominent forum member of Runic's forum prior to the release of Torchlight, and that community was about as tight as this one is with AI War. But as soon as the game was released, Steam & Gamespot launched the media campaign and flooded the forums with thousands of "Steamers" (mostly, but not completely) and changed forever the tone and number of intelligible posts we used to enjoy; effectively landing me here at Arcen to escape the din of Diablo fanboys clogging up the forums with ridiculous and redundant posts.
Ultimately, what I enjoy about Arcen is integrity. That doesn't come often in this world and especially in this industry. The fact that AI Wars is indeed a hidden gem in the weeds makes it all that much more attractive to me; although, this doesn't parallel with monetary success, either. When I read statements like, "It might be worth sacrificing a small bit of your soul"...I get a bit worried cause this is one independent game company which has a "ghost in the machine" in all their products and I'd hate to see anything change too drastically.
I also ended up leaving DeviantArt after many years because they decided to tie everyone's art gallery to the networking sites and I had to draw the line with that one. I understand the importance and value of mass marketing through those mediums, but one must take care not to lose the special bond with the core supporters in the process.