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"there are a quite a few good open source data mining tools are available, which can be downloaded and used free of cost."

A tool for interactively exploring XML datasets with XPath and XQuery. Java stuff.

"The author focuses on the use of technology in libraries to ease the impact of the global economic crisis. He notes that several libraries have documented significantly reduced costs through the use of open source software. He cites that the investments in redesigning a Web site and information delivery tools of a library can make an improvement in the perceptions of library users. He asserts that the creative use of technology can offer relief for the challenging budget of the library by opening up opportunities to generate income."

"This article highlights the benefits of open source databases for businesses and libraries. No matter what size your library is, databases play an important role in providing services. The reason for this is simple: libraries exist to organize information, and databases make it easy to store and retrieve information. Setting up and maintaining open source databases is easier than most people realize. Not too long ago, only systems experts had the skills to install and use a database server. Nowadays, graphical tools have made it a snap to administer databases in a production setting. Open source products are widely used and do not require you to pay licensing fees, so chances are you will be able to apply what you learn in a variety of setting. There is an excellent chance that existing open source products contain all the functionality you need--that is why millions of people, businesses, and libraries use them. The learning curve for open source database is about the same as for most types of software. Because so many people use them, it is easy to find someone who can help you when you encounter challenges. Once you have created your first database, you may discover that you can improve services, gather statistics, or help staff in just a few minutes."