10 advantages of open source for the enterprise: 
Selecting technologies means committing to solutions that will support an active, growing business over the long term, so it requires careful consideration and foresight. When an enterprise bets on the wrong horse, the result is often significantly higher development costs and reduced flexibility, both of which can stick around for the long haul.
read more: Opensource.com Ben Bromhead
Supporting Open Source.
Have you tried: Diving with Sharks?