Not necessarily all interesting things because they can be done with any computer so I am not sure why they picked just to do them with the Mac Mini, but nonetheless it gives you something to do if you are bored.

List includes:

• WebDAV Server HOW-TO
• WebDAV Clients HOW-TO
• Managing Web Sites with WebDAV
• Remote Mac Access with AFP and SSH
• RSS Made Really, Really Simple
• Backing Up Your Mac … for Free
• Mac OS X Tiger Backups: The Good, The Bad, and The Ugly
• Building a Data-Driven Web Site
• Building a Streaming Audio Server
• Web Hosting (Is Not) For Dummies
• Hosting Multiple Web Sites and Domains
• Creating a Secure (HTTPS) Mac OS X Web Server
• Building A PureFTP Server … If You Must
• Building a Home Automation Server
• Building a Computer Telephony Server
• Turning Your Mac mini Into a DVD Player Kiosk
• HOW-TO: Turn your Mac mini into a media center
• CenterStage - The Mac Media Center Open Source Project
• UStec Mac mini Home Media Server
• Wiki Knowledge Base: Using a Mac mini as a Home Media Center
• MacVroom - The Definitive Mac mini Car Integration Site
• iDash: Mac mini for Your Car or Land Rover or Lexus or VW GTi or BMW or 3000GT
• HOW-TO: Turn your Mac mini into a low-cost recording studio
• Installing and Tuning Open Office on Mac OS X
• Exploring the Mac OS X Firewall