404. That’s an error.

The requested URL /bookmarks/mark?op=add&bkmk=http://www.usability.by/microsoft-surface-wine-demo-app/&title=%D0%91%D0%B5%D0%BB%D0%BE%D0%B5+%D0%BF%D0%BE%D0%B4+%D1%80%D1%8B%D0%B1%D1%83%2C+%D0%BA%D1%80%D0%B0%D1%81%D0%BD%D0%BE%D0%B5+%D0%BF%D0%BE%D0%B4+%D0%BC%D1%8F%D1%81%D0%BE%3F+-+Usability.by was not found on this server. That’s all we know.