This is the "Eclipse of Web Browsers", a secure social web browsing and multi-user messaging system. You will need to run your own version of mysql. Development is active and we are seeking project leaders. Please email suprasphere___at___gmail.com.
The Network-Oriented Document Abstraction Language (NODAL)
is a set of standards and protocols for ubiquitous collaboration supported by
an open source sample implementation.
PerPojo combines Pojos (Plain old java objects) and persistence without the need of a database or something like this. It caches all objects in memory and save them to a file using serialization.