Minimalist monochrome drawing tool by Devine Lu Linvega. I say ‘minimalist’ but you can create wondrous sketches with this thing. Quite deep actually. The tool was used to create Neauismea. (Oooooh and check this out - the Wayback Machine has a cached copy of DLL’s mono 3-d architecture thing Poodle!)
Write your own ‘blog’ / ‘wiki’ / ‘hypertext’.
The ultimate peer-to-peer web browser. Create websites that you can share with others. Make your own copies of websites. It’s just crazy. (Find others in the user directory.)
Build interactive stories visually. Truly one of the best ways to teach an elementary-age child to write computer programs.
The most minimal and still very sweet way to participate in The Web. The child of watershed linksite Delicious, same conceit: post your bookmarks publicly, add a little note, a few tags. It’s like having your own href.cool! $11/year, but the real deal is $25/year and it’ll archive all the pages you link to.
The tilde.club was a 2014 resurgence of tilde-style user directories. You used to get these free at your university or with your home Internet connection in the '90s.
Yeah. Whatever this is. A bunch of fish, web fish I guess. Or pebbles maybe. THIS IS WHAT PARTICIPATING IS ALL ABOUT.
Whip together short, multi-tracked chiptunes - and share them with a link.
Create a single page with simple markdown. I prefer this one because I can come up with a memorable URL. Similar sites: telegra.ph, txt.fyi, rwtxt, write.md, verbatim.link, pastery.net, ix.io (a classic).
The very cutest ‘creative thinking and doing tool’—add notes to a page and connect them together with colorful pipes. (By @pketh.)
Send secure, temporary private messages. You can have them expire or protect them with a password. (See also link-lock for sending encrypted links.)
If you need to post something controversial or to subvert algorithms or bots for any reason, you can hide your text in these. (Hat tip, @foone.)
No, let’s not forget the TiddlyWiki. This is a personal wiki that you can edit and save on your own computer. If you need to put your wiki online, you can use TiddlySpot. A more polished but less powerful service can be found in Notion or notepin.co.