http://www.staredit.net/starcraft2/Main_Page.

At the top-right of the Wiki's page, there is a "Log in" link.
Your account and password are the same as the ones on StarEdit Network. No need to create an account or anything: everything is linked together.
If you aren't subscribed on StarEdit Network, you can create an account.

You want to share your knowledge, but do not know where to start?
Here's a list of things you could start working on:

• Requested tutorials
  
• Wanted pages
  
• Find your posts from within an Assistance Forum and if you solved a question, write a wiki about how you solved it.

You can find it there: http://en.wikipedia.org/wiki/Wikipedia:Cheatsheet

You have to copy this line at the end of your articles:

Code

Please submit any tutorial request by editing this section of the Wiki.

First of all, I believe the "Discussion" pages, while crucial, are extremely inefficient in the Wiki itself. Thus, any Wiki-Discussion should be done within this forum. Also, if you notice an incomplete article or errors within one and do not have the time to correct the situation, you can create a quick report-thread in here.
Secondly, I needed to do a bit of advertisement for our Wiki ( ).