Comic book ad space

I'm offering ad space in my upcoming comic book to cover my initial printing costs. I'll do this with each issue, and they will probably come out every other month. I'm about a page and a half (and a cover) away from being finished with the first issue. (Note that I will get a proof before I print a bunch, so they won't be available until the middle of next month.)

You can see a few pages right here so you know what it's all about. It's a group of third tier super heroes. Yay.

A full page ad is $30 and a quarter page is only $10. The comic is in BLACK AND WHITE so please keep that in mind when designing your ads (In the future it might go to color. We'll see!) A standard comic book page is 6 x 9, and I will want your ad in 300 DPI (If you need help, just ask.) If you're interested in the back cover or inside the front cover, feel free to ask.

Ads are first come first serve. Meaning they'll be in the comic in the order that they are paid for, and I will not hold a spot. (I am in the process of laying out the comic and figuring out where the ad breaks will be.)

Thanks in advance guys! I can't wait to see what you come up with!