This is krass.com (A Techno Wiki).
The website is using a wiki software like wikipedia, this makes it possible for anyone to change pages and to update information. You can edit most pages right away, or you could create an account at the User Login page to start adding and changing information.
I have updated krass.com to a new version of the mediawiki software and moved it to a new server. This means that is probably a bit slower and some special characters might show up wrong.
I have also kept the interface similar to the standard mediawiki one, which makes it easier for people who are used to wikipedia.