IBM developerWorks is running this Enhydra case study. Their summary:
Enhydra, an open source application server, serves as an example of collaboration between business and development in the open
source community. Maya Stodte takes a look at how the developers of Enhydra were able to harness the powers of open source development,
as well as the open source business model, and the commercial itch the Enhydra product was designed to serve.
August 7, 2000