The Parallel Genetic Algorithm Library (PGAL, pronounced "Piggle") is a C++ toolkit for simply, efficiently, and swiftly producing genetic algorithm code that works across multiple processors. This is useful not only for those with multi-processor computers, but also for distributed and cluster computing genetic algorithm environments such as openMosix.
SurgeMail is a next-generation Mail Server. It combines features, performance, and ease of use into a single integrated product. It supports all the standard protocols, such as IMAP, POP3, SMTP, SSL, and ESMTP. It supports several anti-SPAM features which include friend-lists, black-lists, email postage using centipaid, smite, and more.
Drqueue is a distributed rendering queue. It helps manage jobs on a render farm. It works under Linux, Mac OS X, FreeBSD, IRIX, and Windows, supports Maya, Blender, Lightwave, Mental Ray, Bmrt (Renderman), 3Delight, and Pixie out of the box, and can support any other renderer or computing task that can be handled via scripting.
The Linux Replicated High Availability Manager (Linuxha.net) allows the creation of clusters for application high availability through data replication. Currently, clusters are limited to two nodes, but multiple applications can be hosted and failed-over between the nodes. The software uses DRBD to provide the data replication facillity.
Blitz is an open source JavaSpaces implementation designed to ease development and deployment of JavaSpaces technology. It is Jini 2.0 enabled, and uses established VM principles. It also implements smart indexing, tuneable persistence, and active/passive lease cleanup. It is designed with experimentation and expansion in mind.