CUBRID is an open source, enterprise ready relational database.
CUBRID is a comprehensive GPL/BSD open source relational database management system highly optimized for Web Applications. CUBRID is being developed in C. Includes HA, Database Sharding, online backup, and enterprise ready features. Node.js, JDBC, PHP/PDO, ODBC/OLEDB/.NET, Ruby, Perl, Python, and C APIs are available.
WikyBlog is a CMS/Groupware application written in PHP/MySQL that fuses collaborative editing features of wikis with user friendly publishing characteristics of blogs. MediaWiki derived wiki syntax, AJAX enhanced, UTF8 and extendable (google maps).
SQLiteDBMS is a database management server for SQLite. It allows an sqlite3 process to be accessed via a TCP/IP network. It provides Extended SQL, SSL, basic authentication, query caching, WebDAV, access control, and replication. http://sqlitedbms.sf.net
See http://www.cubrid.org/cluster. CUBRID Cluster is an open source clustered DBMS for high scalability including global schema, distributed partition and load balancing features. It is a spin-off project from CUBRID project and supported by NHN.