Have you ever downloaded e-books from WOWIO?

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Wowio is a site that offers downloads of e-books. They used to be free, but now they charge a fee. I especially liked downloading their comics and graphic novels in pdf form. I managed to get quite a few titles. They currently have some titles that I want, but I don't have the money to pay for them. Has anyone collected some of the comics from Wowio? I was thinking that maybe we could trade.