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XOOPS CMS is an extensible, OO (Object Oriented), easy to use dynamic web content management system (CMS) written in PHP. XOOPS is the ideal tool for developing small to large dynamic community websites, intra company portals, corporate portals, webl...

SourceForge.net. Fast, secure and free downloads from the largest Open Source applications and software directory

Twitter is without a doubt the best way to share and discover what is happening right now.

Packt Publishing is the leading UK provider of Technology eBooks, Coding eBooks, Videos and Blogs; helping IT professionals to put software to work.

Prezi is the zooming presentation editor

LinkedIn strengthens and extends your existing network of trusted contacts. LinkedIn is a networking tool that helps you discover inside connections to recommended job candidates, industry experts and business partners.

Diigo is a powerful research tool and a knowledge-sharing community

Web hosting reviews, guides, and advice for businesses, churches, and personal web sites

Tiki Wiki CMS Groupware -- A full-featured, open source, multilingual, all-in-one Wiki+CMS+Groupware written in PHP.