The Edublogs site went dark for about an hour after its hosting company, ServerBeach, pulled the plug. The hosting firm was responding to a copyright claim from publisher Pearson, which said one blog had been illegally sharing information it owned.
ServerBeach said it had had to act because two requests to remove the content had been ignored.
The offending article was first published in November 2007 and made available a copy of a questionnaire, known as the Beck Hopelessness Scale, to a group of students. The copyright for the questionnaire is owned by Pearson, which asked ServerBeach to remove the content in late September.