The HyperText Transfer Procotol, or the reason you're looking at this page right now.
(todo: insert relevant RFCs, especially the WebDAV ones)
Server Software:
Windows
Other Systems:
- Apache
- Cherokee
- thttpd - can be compiled with PHP
- Nanoweb - PHP as its own web server
- lighttpd
- nginx
...and a cast of thousands.
Tools:
Resources:
- HTTP compression in Python
- RFC:2616 Hypertext Transfer Protocol -- HTTP/1.1
- RFC:2774 An HTTP Extension Framework
- RFC:3143 Known HTTP Proxy/Caching Problems
- User-Agent Info
- robots.txt validator