Findings:

• Media Tracker
• BitTorrent tracker
• Node Tracker (superdoc)
• schism tracker
• Tracker (user)
• Java Node Tracker
• Media Tracker (user)
• Impulse Tracker Effect List
• ModPlug
• E2 node tracker
• United Trackers
• Buzz Tracker
• Scream Tracker
• Impulse Tracker
• tracker

If you Log in you could create a "ModPlug Tracker" node. If you don't already have an account, you can register here.