LearnNext http://www.LearnNext.com) has launched advanced e-learning platform for cbse students. The product is quite different from the classic CD style solution. it works without internet to start with, but if you are conntected to the internet, it communicates with the central learning system and analyses the activities and progress by the student so far and can guide the student appropriately. A student can find his/her areas of strength and weaknesses and adapt accordingly to score higher in the exam.
The product is most competitively priced too : for example Educomp/MathGuru charges 1800 rs just for ncert solved problems in audio visual format. MathTopper charges 2050 or something. one full year subscription to full package on extramarks can cost you some 10,000+. Whereas LearnNext charges 1799 for audio visual lessons in Maths and Science, Comprehensive assesment / tests and solved ncert solutions - all for 1799. The course content quality is also world class. For more details visit http://www.learnnext.com/user/whatisLearnNext.htm.