If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.
Start by paying someone for hosting. That's enough to learn about. Maybe start by paying Amazon nothing for a year of EC2 hosting. Once you understand how to host a website, you can migrate it to your home computer, where you will run into additional difficulties, like installing a base webserver and automatically updating your DNS. But probably you should stick with paid hosting. For static files, Amazon S3 is extremely cheap. For a full-fledged webserver to install your wiki, Nearly Free Speech will do, and is probably cheaper than Amazon, especially at your usage level.