Databases software
http://www.oracle.com/
The world's largest enterprise software company, Oracle is the only vendor to offer solutions for every tier of your business -- database, middleware, business intelligence, and collaboration. With Oracle, you get information that helps you measure results, improve business processes, and communicate a single truth to your constituents.
http://www.asksam.com/
The Award-Winning Free-Form Database - a database flexible enough to organize email, Word documents, PDF files, legal texts, research notes, or names and addresses.
http://www.freetds.org/
FreeTDS is a set of libraries for Unix and Linux that allows your programs to natively talk to Microsoft SQL Server and Sybase databases.
http://www.pervasive.com/
Data Management: Your source for .Net Databases, embedded technology, Database Comparison, Linux Embedded Databases, embedded linux databases, Database Reviews, Borland Databases and embedded databases.
http://www.awareim.com/
Build complex, reliable and powerful web-based database applications in a fraction of the time. No programming, database, web or user interface skills required.