One is on the gaming StackExchange.
One is on the science fiction and fantasy StackExchange.
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Also, please tell me if you have better suggestions for the ad picture. I selected an open source (even for commercial use) picture of a "sombrero galaxy" (I think a galaxy viewed from its side?), because it just looks nice and "spacey". I don't have any image manipulation program skills (except for Paint, which I used to resize the pictures :p). I figure the lack of text could either make the ad interesting, or totally useless. What do you think?