REUTERS - Feb 11 - Russia's Federal Security Service (FSB) has ordered some of the country's major internet companies to give it continuous access to their systems. The list, drawn up by Russian communications watchdog Roskomnadzor, contains more than 200 entities such as popular messenger service Telegram, some Yandex services, social network VK and classified advertisement website Avito.ru. Companies that fail to comply can be blocked. Tinder said last year that it had agreed to be added to Roskomnadzor's register but had not divulged users' personal information.