The Attacks Against Estonian Servers

For a good summary on what's been happening so far, read this article from Helsingin Sanomat.

Russia's aggressive displays towards Estonia of late, in the wake of the moving of the "Bronze Soldier" Soviet war memorial, have not been confined to rioting by nationalists on the streets of Tallinn or the blockading of the Estonian Embassy in Moscow.
Estonian government websites and others have been the victims of denial-of-service attacks since Friday of last week [April 27th, the day the statue was moved, following a night of rioting that left one man dead].