Info World - The fight over open source 'leeches'
"Leeches" -- that's how Dave Rosenberg, co-founder and former CEO of MuleSource, and now part of the founding team of RiverMuse, refers to companies that use open source technology but don't give back to the open source community. Companies like Cisco's Linksys subsidiary, whose routers rely on Linux. Companies like Amazon.com, whose Elastic Cloud Computing (EC2) service depends on Eclipse Foundation's open source offerings.
Your ear doesn't have to be pressed to the ground for long to hear angry grumblings in the open source community about leeches, vampires, or freeloaders.