• http://www.terracotta.org/
• Sprint + Terracotta: http://www.infoq.com/articles/spring-web-flow-terracotta

HAppS? is a framework for developing Internet services quickly, deploying them easily, scaling them massively, and managing them ziplessly. Web, persistence, mail, DNS and database servers are all built-in so you can focus on app development rather than integrating and babysitting lots of different servers/services (the Haskell type system keeps everything consistent).

• http://happs.org/HAppS/README.html