Alternative Websites

So I use to use demonoid every once in a while, no I don't want to get into a debate about torrents and piracy as I pay for a hefty amount of my items. The fantastic thing about demonoid, was that I was able to get out of print books and other expired copyrighted things etc and even pay for sites didn't have these items.

What are some alternatives to demonoid? I have looked at usenet but it seems like a lot of effort, and other "private" sites like iptorrents is ridiculous you have to donate to get a 10gb limit.

Again this isn't promoting torrents or anything, just want to get quality content (unavailable elsewhere.) Thanks!