This week's book giveaway is in the Other Languages forum. We're giving away four copies of Functional Reactive Programming and have Stephen Blackheath and Anthony Jones on-line! See this thread for details.
Are you looking for an in-memory distributed object cache / data grid?
If so, there are several ready-made products available that offer this functionality, like Oracle Coherence, Terracotta and GemFire.
Build a man a fire, and he'll be warm for a day. Set a man on fire, and he'll be warm for the rest of his life.