WorldStart.com has freelance writer jobs available for anyone who can write computer tips. These don't have to be extremely technical but they do have to be detailed. The articles are published in their email newsletter, Computer Tips & Techniques.
The pay is really fantastic - from $35 to $65 per article. Minimum word count is 400 words and pay is increased by $10 if you include screenshots. They have back issues available if you want to check out the general format of previously published work.
From the website:
"We are looking for general windows, internet, and e-mail tips. Tips that relate to one specific program or hardware device usually are not appropriate for this publication.
The newsletter has two primary sections - Computers 101 & Tip of the Day. The Computers 101 section is presented in a Q&A style and generally covers a topic beginners would be interested in."
If you're interested, check out the WorldStart website for more information. Good luck!