AJAX mail in RuNet

Few people know that most of the Runet mail systems are gradually moving to AJAX technology, which is very successfully implemented by Google’s mailer Gmail.com.

1. I will start with the first Ajax interface from Yandex.
The interface itself exists for no more than two years and was presented to the public about a year ago. If my memory serves me, I first learned about it from the Computer website. Implemented a lot of the right tools, which are not convenient in Gmail or not implemented at all. Although this statement is twofold in the sense that both mails, although they are sitting on the AJAX interface, have some special differences.
You can look at Yandex's AJAX mail interface at mail.ya.ru
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2. The second Ajax interface, which I learned about recently from Lirushnik Atila , from the company Mail.Ru. What to say? Gmail Ajax Interface has been around for a long time (more than three years), and this one has only recently appeared. But let's not make conclusions prematurely - the project can already be debugged to work correctly and is ready to accept our slim ranks of Internet users =)
You can look at it from the page http://pro.mail.ru