YUNITA, 25, was very annoyed. The film reference site she had often accessed, www.imdb.com, abruptly allowed no entry. In fact, the insurance company employee needed to browse it before watching the film The Expendables with her friends. “We finally went to the movies even without any background of the picture,” she said.

Such irritation was not only Yunita’s experience. Though no exact data are available, millions of Internet users have s