HEATKEYS

AWStats Official Web Site - Get advanced graphical web, ftp or mail statistics with a logfile analysis (For IIS, Apache,... distributed under GNU GPL).

Programming tutorials and source code examples

Apache Log Viewer (ALV) is a free tool which lets you monitor, view and analyze Apache or IIS logs with more ease.

WebLog Expert is a powerful access log analyzer. It can give you valuable website statistics. Lots of reports will help you to learn more about your visitors and increase the popularity of your site.

Google

Tutorials for Java, Linux, Mac OS X, iPhone, iPad, Android, Drupal, MySQL, UML, software quality, testing, and more.

Hortonworks develops, distributes and supports a 100% open source distribution of Apache Hadoop for the enterprise, also training, support & services.

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

Log management cloud service for centralized log search and analysis, time series data. Troubleshooting, debugging, root cause analysis with Loggly. Cloud based simple service, scalable, no upfront costs.