But perhaps you were looking in Google News ,which only goes a month back. It happened around the end of April and beginning of May. Look in the main part of Google, and you'll get stories like this:
The attacks began on April 27, a Friday, within hours of the war memorial's relocation. On Russian-language Internet forums, Estonian officials say, instructions were posted on how to disable government Web sites by overwhelming them with traffic, a tactic known as a denial of service attack.
The Web sites of the Estonian president, the prime minister, Parliament and government ministries were quickly swamped with traffic, shutting them down. Hackers defaced other sites, putting, for instance, a Hitler mustache on the picture of Prime Minister Andrus Ansip on his political party's Web site.
The assault continued through the weekend. "It was like an Internet riot," said Hillar Aarelaid, a lead specialist at Estonia's Computer Emergency Response Team, which headed the government's defense.
The Estonian government began blocking Internet traffic from Russia on April 30 by filtering out all Web addresses that ended in .ru.
By April 30, Aarelaid said, security experts noticed increasing sophistication. Government Web sites and new targets, including media Web sites, came under attack from electronic cudgels known as botnets. Bots are computers that can be remotely commanded to participate in an attack. They can be business or home computers, and they are known as zombie computers.
http://www.mercurynews.com/search/ci_5941544Teenager Detained For Attacks On Estonian Computers
May 5, 2007 -- Police have detained a 19-year-old Tallinn resident who is suspected of involvement in a wave of attacks against Estonian computer servers.
A spokesperson for the Estonian prosecutor's office said the young man -- an ethnic Russian -- was posting calls to organize mass attacks against Estonian servers on Internet forums.
Many government sites in Estonia have been forced to shut down during the past week because of the attacks which followed the removal of a Soviet war memorial from the center of Tallinn.
http://www.rferl.org/featuresarticle/2007/05/AF23C86E-1F23-46B4-88BF-2ABDB4C618B8.htmlThere was talk that the attacks were actually coordinated from Russian government computers, but I doubt they'd be able to prove that.