<p>As one can see, the functionality of tags has been extended lately; <a href="http://blog.stackoverflow.com/2010/08/new-tag-info-pages/" rel="nofollow">blog post about it</a>. One of the most important changes are the tag-wikis; now every tag can have a small description of a topic it covers.<br>
Because it is pretty hard to gather enough reputation to edit wikis, in this question you can suggest wikis; those upvoted enough will be added to tags by me or other mods.</p>
