Other WordPress Wiki Users

How have you successfully gotten site visitors to register and start contributing? I’ve tried putting up good starting content, crap starting content that they could build on, and blank templates that just need to be filled-in. Nothing. I know I’m dealing with a small demographic (helicopter pilots that care about flight instruction, probably a few 1000 plus 2-3 times that in student pilots) and most of them are out flying during the summer months, but no helicopter pilot is un-opinionated. I’d have expected something by now. I’m near the 1000-hit mark with a handful of registered users and only one who has generously started adding video content.

I recently moved a wiki-editable link to the top of the documents, and I’m going open a linked T-shirt shop (there aren’t many good places to get a cool helicopter T-shirt that isn’t the silhouette of an Apache) to drive more traffic to the site, and as a last resort I may offer coupons to registered users. After that, I’m 100% out of ideas.

Any thoughts? Here’s a link to the site.