"Many of the features that have made Nagios so
effective are extensions of the actual software written by numerous
developers worldwide.
"In contrast, the core of this system -- the Nagios software
itself-- is maintained by a single developer in the United States
and hence is developed at a slower pace. The Nagios community has
previously attempted to clear this bottleneck with suggestions to
broaden the developer base.
"Long awaited improvements such as the regular integration of
community patches, the connection to databases or the web interface
were hoped to be accelerated. Unfortunately, these attempts came to
little success and effective community commitment has gradually
deflated."