"Last year open source analyst Michael Coté of Redmonk
coined the term Little Four to describe four up-and-coming open
source management vendors and as a foil to the Big Four of systems
management.
"In the open source space, the 4 names that come up each
time--usually from people I'm talking with even before I say
anything--are: Zenoss, Hyperic, GroundWorks, and openQRM..."