This video says about itself:
The Russian Social Media Ban in Ukraine, Explained
16 May 2017
The President of Ukraine, Petro Poroshenko, has signed a National Security and Defence Council of Ukraine decree from April 28, 2017, which will block access to Russian social media sites “VKontakte” and “Odnoklassniki”. All “Yandex” services have also been banned, as well as the business management software, 1C.
Hromadske’s Nataliya Gumenyuk spoke to Svitlana Matviyenko, a media and information war researcher about what the Ukrainian government wants to achieve with the ban, what it means for democracy and what are the positive sides of this decision on May 16, 2017.
From daily The Morning Star in Britain:
Wednesday 17th may 2017
UKRAINE’S president decreed hundreds of Russian firms banned on Monday — including the country’s favourite social network and search engine.
Billionaire President Petro Poroshenko’s office said yesterday the order freezes the assets and bans the operations of hundreds of companies and blocks access to search engine Yandex, social media network VKontakte and the email provider Mail.ru for three years.
The websites were accessible in Ukraine yesterday afternoon and it was not clear when or how the government was going to enforce the ban.
Also banned are Russian TV channels including Rossiya Segodnya, RBC, VGTRK, TNT.
Ukraine blames Russia for the anti-fascist uprising in the industrial east and the secession of Crimea following the 2014 far-right coup in Kiev.
There was no immediate comment from Moscow on the latest escalation of enmity.