madlibber.com is such an awesome idea. You need to take some time to populate (or copy) good mad libs and artificially vote them up so that it's not a ghost town when people arrive.
Update: I just created an account with inqueryapp -- I cannot add a category. The AJAX response is a 500, you might want to check that out. Up to that, the experience was rather enjoyable and I was really looking forward to creating a FAQ page using your service.
That's a good idea, I'll throw a bunch of samples up there. Now, I need to figure out how I should display a tag list or cloud on the homepage to navigate. Probably should make a little "syntax help" link when creating madlib stories too.
Weird, I can't reproduce that inquiry error and Hoptoad didn't catch anything. Let me know if you run into that again.
http://webchiever.com/ - Web achievements
http://inquiryapp.com/ - Hosted FAQs for your apps