Estonia:

Estonia has pursued the development of the e-state and e-government. Internet voting is used in elections in Estonia. The first internet voting took place in the 2005 local elections and the first in a parliamentary election was made available for the 2007 elections, in which 30,275 individuals voted over the internet. Voters have a chance to invalidate their electronic vote in traditional elections, if they wish to. In 2009 in its eighth Worldwide Press Freedom Index, Reporters Without Borders ranked Estonia sixth out of 175 countries. In the first ever State of World Liberty Index report, Estonia was ranked first out of 159 countries.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". What digital technology as Estonia been advacning?
Internet voting