Sesame Database Manager - Lantica Software, LLC - Sesame, A Q&A-compatible Database Manager.
XML Copy Editor - XML Copy Editor is a fast, free, validating XML editor.
XtraBuild Designer - XtraBuild offers software development tools for database and reporting applications. No coding!
Oxygen XML Editor - Oxygen XML Editor provides a comprehensive suite of XML authoring and development tools.
Sheep - Membership and events for SMEs and nonprofits
Liquid Studio - XML Tools Provider: XML Studio - Graphical XML Schema Editor.