Here are 50 Computer Security Tutorial Videos hosted by security-freak.net. This site’s author says that it is an attempt to lower the entry barrier for starting computer and network security research. Its objective is to present free videos to explain difficult security topics, such as raw sockets, packet injection, etc. This site will teach you [...]

Here are Video Tutorials on SQL and SQL Server 2005. These tutorials will These will teach you how to design relational database tables and then edit and work with these tables. They also will show you how to use several important features of SQL Server 2005, including using SQL Server Management [...]

You, can improve your productivity at Office using these top rated freeware tools , that do many of the document,presentation related task easily and that too for free .
OpenOffice - office suite (The best available on Linux,Windows)
PC Suite 602 - office suite
AbiWord - text editor
Atlantis Nova - text editor
Microsoft PowerPoint Viewer - power point [...]

Indian institute of Technology and indian institute of sciences, have collaborated to bring out this excellent learning resource for students .
(Videos on YouTube)

Eklavya is similar effort by IITs and HRD Ministry .
These courses are highly beneficial for students who were unable to make to IIT’s but would like to learn from them, can easily view [...]