I do something similar to you, except I differntiate what I find useful for myself VS what others might find useful
- I keep everything on a blog. I limit it to 6-10 total viewable areas at most, b/c anything more is too overbearing. One home page, 4-6 page links to toolboxes, inspiration, etc. Example http://vincentmtang.com/toolbox/
- For constant updated docs, I use wordpress pages. Its very fast and easy for me to edit. Things like portfolio pages, etc that would change on an ongoing basis
- Standard operating procedures, I commited to memory already. Haven't bothered posting any of that, if I did I would opt with youtube videos
- Social media links → dump on blog
- Diary -> I use workflowy / dynalist, I keep it private b/c I write some profanity in there sometimes
- Bookmarks → I use pinboard, but for things commonly accessed I use chrome toolbar
- Git repositories → just star it and search for it. Fork it if I'm going to use that repo in next month
For me, a tool is a tool. Wikis are tools. They help out, if you use it properly. But it only goes so far - you can spend all day investing in your toolbox, and have an amazing garage workshop. But if there's no functionally useful DIY projects to back it, then the toolbox doesn't serve a function. That's why I shy away from wikis. My rule of thumb - spend 80-90% of time actually building things or knowledge to build it, 10-20% reflecting and building that toolshed.