• Yook.de - free java games (since 1999)
• Geldjagd - euro notes database (since 2000)

• Linkomatic - java based link exchange (since 2007)
• HTML code cleaner - cleans your webpages from unnecessary content and reduces traffic and loading time.
• Meta tag generator - generates suitable metatags based on content of pages. Works for me and google.

• XDoclet 1 - well known code generation engine for java.
• XDoclet 2 - next generation of xdoclet.
• Pico/Nanocontainer - lightweight dependency injection container.
• JTec Components - lightweight components for development of web based applications.

• MyDiablo.de - Configuration tool for diablo 2 characters
• UNITRACC stays for UNderground Infrastructure TRaining And Competence Center.
• MEI GmbH - small medical electronics company.

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