Report Yandex: 25% of content in RuNet - copy-paste

Yandex recognized 25 percent of news reports on the Runet as reprints — text copies of news from other resources. At the same time, references to the source are contained only in 40 percent of reprinted messages.
Yandex report: company.yandex.ru/facts/researches/yandex_on_internet_media_spring_2011.xml
News in brief: lenta.ru/news/2011/03/09/unoriginal