We need new documentation on this wiki – browse around and try finding nonexistent pages (they look something like this). If you know anything on the subject, please post it! In particular, information about software packages and how-to guides are very useful for new and experienced users alike.
Try to copy the formatting from existing articles, including the categories (for example, [[Category:Packages]]). This makes it easier to find information, and gives the wiki a more professional appearance.
You can copy information from Wikipedia or other Web sites with free licenses such as GNU GFDL or public domain. If you do this, PLEASE CITE YOUR SOURCES.
Also pay attention to existing documentation. Most of what we currently have is a mess; pay particular attention to stubs, short articles urgent in need of expansion. Major topics like Installation deserve especially strong attention.
Other things you can do
We're still testing the new site design. If you find any bugs please post them on Meta. Chances are there will be quite a few.