I mostly use wikiHow for cooking and home improvement tasks. The site does a good job of making technical processes feel easy understand using different forms of media without sacrificing specificity or completeness. One of the articles I've come back to multiple times is about how to tie a tie, and it's been cool to see the changes the page has undergone since the first time I visited it - it now has multiple methods and each step has a detailed illustration with annotations. I appreciate that the wiki format allows wikiHow to get better over time.