This wiki currently has a small community and there's plenty of work that needs to be done. It was somewhat neglected for a while but we've been making a lot of progress improving the articles and the general feel. Most of the articles are reasonably well connected now so you should be able to walk through the Wiki by following links or you can use the search feature. Unfortunately, there are still a lot of rough spots though.
If you'd like to help out, please feel free to correct any typos or grammar mistakes, add pictures and expand the articles. If you see something is just wrong or doesn't make sense, please correct it.
Anyone interested in making a major contribution can try the Stubs list to find painfully short or low-quality articles that need improving. You can also try Special:WantedPages for a list of pages which are planned to be added but haven't been yet.
If you start an article from scratch, try looking at existing articles, preferably ones without a Stub message on them, to get a feel for what sections you should include. You don't need to write the whole article at once, even a partial page would be helpful for one of the regulars to just finish off.