nice .htaccess overview tutorial

http://www.vortexmind.net/index.php/2006-02-26-apache-htaccess-tweaking-tutorial/
covers:
1. Folders Access Control
2. Folder Listing
3. Enable Compression
4. Hide your files
5. Customized HTTP 404 error page
6. Blocking bad referers - No hotlinking
7. Blocking Bad Bots | Fetchers
8. Do not show ‘www’
9. Hide scripting language extension
10. Various Tips & Tricks
11. Password Protection with htpasswd
12. Enabling SSI
13. Changing default page
14. Avoid 500 error
15. CheckSpelling directive
16. Add MD5 Digest
17. Sources
18. Tools