OSInet Munin provider is an alternative to the leightweight Munin monitoring project. As such, it comes with:

• A more extensive API
• More built-in counters for
  • core:
    • nodes pub/unpub
    • comments pub/unpub
    • users active/blocked
    • sessions anon/auth
  • extensions: APC caching, APC uptime
• Munin-monitoring: ability to report on the munin monitoring system activity at produce alerts when probing stops
• Code available at http://git.osinet.eu/gitweb?p=drupal/modules/munin_api.git;a=summary

• Forum monitoring:
  • # fora created
  • topics per forum
  • contributors per forum
• Content views percentile graph (long tail monitoring)
• RSS feed monitoring
  • subscribers per feed anon/logged
• Simplenews monitoring
  • subscriber count per newsletter