Russia passes law to force websites onto Russian servers:
The law will mean that from 2016, all Internet companies will have to move Russian data onto servers based in Russia or face being blocked from the web. That would likely affect U.S.-based social networks such as Facebook, analysts say. Ref. Source 1
Moscow tells Twitter to store Russian users' data in the country:
Legislation that came into force on September 1 requires both Russian and foreign social media sites, messenger services and search engines to store the data held on Russian users on servers located inside the country. Ref. Source 4y