OpenSourceClassifieds is LAMP software for creating highly-scalable classified ad websites. It supports general ads or specialized ones through plugins (cars, jobs, real estate, dating, etc.), many languages, lots of options for customization, integration with TinyMCE for WYSIWYG editors for rich formatting, extensibility through plugins (Google Analytics, Google Maps, Time elapsed, etc.), an interchangeable look and feel with themes, search engine (SEO) features (Sitemap.xml generation, robots.txt, nice URLs), an integrated search engine with full text support, an unlimited number of categories and sub-categories, and out-of-the-box anti-spam facilities (Akismet, Re-captcha).
Zato is an Enterprise Service Bus (ESB) and app server written by pragmatists for pragmatists. It provides an HA load-balancer, hot-deployment, and hot-reconfiguration almost everywhere (forget server restarts). It has a browser-based GUI, CLI, and API (forget XML configuration). It supports many protocols, industry standards, and data formats, including HTTP, JSON, SOAP, REST, AMQP, JMS WebSphere MQ, ZeroMQ, Redis, SQL, and FTP.
Vedis is an embeddable datastore C library built with over 70 commands. It is similar in concept to Redis, but without the networking layer, since Vedis run in the same process of the host application. Unlike most other datastores (e.g. memcache, Redis), Vedis does not have a separate server process. It reads and writes directly to ordinary disk files. A complete database with multiple collections is contained in a single disk file. The database file format is cross-platform; you can freely copy a database between 32-bit and 64-bit systems or between big-endian and little-endian architectures.