Here's a list of what I do:
- Windows troubleshooting
- PC hardware/software troubleshooting
- PC assembly / repairs
- Email support for account related stuff (change email, change address, password resets, etc)
- Email / remote access tech support using logmein or teamviewer
- Wordpress installation / management
- Forum software installation / management
- Forum moderation (IPB, PHPBB)
- Some experience in HTML, PHP, CMS