How to cross friends from Vkontakte and Facebook

Question

Facebook

I would be grateful if someone gives a link to a similar example.

Answer 1

Assign an arrow and let them intersect.

Answer 2

Use the API of these social networks. networks.

Answer 3

in Facebook they somehow added a search for contacts from Vkontakte.

Answer 4

In the sense of finding all your friends from a contact on Facebook and vice versa? And how do you imagine it in general?
The only chance is to compare e-mails, but VKontakte does not allow you to search for emails and find out the emails of friends either.
You can try to use the advanced search by parameters from the profile, but here you may be lucky or maybe not.

Answer 5

Recently on Twitter they wrote that Facebook opened two applications that did the import of contacts or something like that.
Check out their feed: twitter.com/# !/vkontakte