if anyone is interested, there is ,imho a great documentary on the subject called "the corporation".
see http://www.thecorporation.com/ and or http://en.wikipedia.org/wiki/The_Corporation for more info.

who cares? if the students are using this service with the intention of cheating then, they are not really learning anything.. furthermore they will have to cheat during the test as well, so why not wait and "catch them red handed? rather than make a big stink about something that could be legitimate. personally i'm glad people are using this and other means to obtain information. imho the public school system isn't worth much and hasn't been for some time now, sadly universities, and colleges are following the same trend. if the school you tend public or private doesn't teach you in a productive manner, i feel you are left with no other choice (that is unless you don't care about learning) than to find other means of furthering your knowledge.