TropicalWikis was a free wiki hosting service, aka a wiki farm. It used the popular MediaWiki software, and claimed to offer unlimited storage. It seemed to be funded by way of advertising banners at the top and bottom of the screen supplied by Project Wonderful.
This wiki appears to no longer exist, although one cannot be sure. A connection to the server can be established, but the page redirects several times, and ends up at a suspected spam music site. Therefore, whether this wiki is permanently dead or is just dormant is unknown. It is likely that the system administrators have redirected all the pages as a spam or death cover-up.