Does anyone know of a tool which
- Can display formulas neatly, preferably like this website without hassle. (Unlike wikipedia with
- Has a wiki like structure: i.e categories of pages, individual articles with hyperlinked sections, subsections etc.
- Preferrably can be used online and does not require installation of some software.
- Comes with a free host, i.e for people with little money and no university server.
So basically I need a notebook on steroids :)
Update: Edited this question to remove the essay I wrote on blogs. You may refer to the revision history if you're interested. I am keeping it open in case anyone knows of further alternatives than have already been mentioned. At present I have settled on and am fairly content with Drupal.