I have books 1 - 11 and the prequel of the Wheel of Time Series (all the books Jordan wrote) signed by Robert Jordan. I was thinking of listing them for sale as a set but have no idea how much they're worth, if anything. I've never seen a full set on ebay, and individual books vary wildly, so I was hoping someone might be able to recommend a good book oriented forum where I could ask around. I've looked up a few but was wondering if anyone knows of a trustworthy site that they use frequently.

In before "let me google that for you."

I would recommend contacting a book dealer who specializes in fantasy and asking him. Just keep in mind that any honest dealer will likely quote you a price well below what you might see on various websites.

That's what I was worried about.