Speedtest.net

Product information:

Speedtest.net is a free broadband connection analysis website founded by Mike Apgar who founded Ookla Net Metrics in 2006. It can be found in http://www.speedtest.net/. Users can test their internet speed against hundreds of geographically dispersed servers around the world. At the end of each test, users are presented with their download and bandwidth speeds. The tests are performed completely within your web browser over HTTP (just like normal web browsing). The site also offers detailed statistics based on users' test results.
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Demo Video:

http://www.youtube.com/watch?v=b89mjPWDics

Screenshots:

How will the students make the most out of the software (increase their productivity) in school?

Students can check the speed of the wi-fi connection at school to know how fast or how slow the connections is, when they are not satisfied with the speed or they need a faster internet connection, they can find a new spot and check their internet connection again. They can repeat this process until they’ve found a place where there is a fast connection.

Product evaluation of the group with respect to productivity.

Speedtest.net does not only help people in finding a nice spot where there is a good connection of internet. You can also check your speed at home, and if your speed is less than the speed to what you are paying, you can always call your telephone operator and tell your concern about your internet.