While on a lot of sites just a button with the “LoginVkontakte” logo has not appeared,
VKontakteID helps and simplifies the entry and registration of clients (via the standard OpenID protocol). Now the service has a short and memorable alias, in order to gain something it was necessary even less.
On all sites that support OpenID 2.0, just enter the address
vk.lc and you will be authenticated using your VKontakte account through the official Open API (i.e., no passwords to the left will not flow away).
On sites that support only OpenID 1.x, you must enter the address
vk.lc/idXXXXXX , where XXXXXX is your VK identifier.
PS These are just brief aliases - the main address is
VKontakteID.ru