Russia's recent legislation has placed demands on the location of servers that have already ousted LinkedIn, in what could be a precursor to bigger networks.
One of the world's largest porn sites has introduced mandatory logins in Russia, synced with users' social media.
No country allows limitless “quasi-freedom” online, the Russian leader said.
VKontakte has apparently been breached and a hacker is trying to sell the logins.
A new draft demands state employees brief bosses on information they have shared online.
“Someone like Putin, so full of strength, someone like Putin who doesn’t get drunk.”
German Klimenko insists U.S. companies will have to comply with Russian law eventually.
The future of social media websites in Russia depends on “whether or not they cooperate with law enforcement authorities”, Vladimir Putin's online advisor said.
President Petro Poroshenko becomes 2016's first unlikely cover star.