There are many exchange options available, but one of the most popular ones – Webmoney – is missing. It also claims to operate around the clock, but my first attempt to conduct a transaction late at night ended with my request remaining unprocessed until morning. Additionally, the minimum withdrawal amount here is quite high: you can't withdraw less than 1,000 rubles from YandexMoney and Qiwi, and for Bitcoin, the minimum amount is 0.003. Registration on the service is mandatory, and while you can start the exchange process on the main page, you still have to go through authorization and re-enter your data, so it's better to register right away to save time. Overall, you can work selectively; transfers take 15-30 minutes, support is available (except late at night), and some rates are indeed favorable, although not all.