and 1 more clue....

because i know they are in france i use google france for search

https://www.google.fr/?gws_rd=ssl#q=silkcoin+robert
https://www.google.fr/?gws_rd=ssl#q=silkcoin+antonin

what nice friends.

what a nice fb username antonin has... where did i see that before?


answer 1,4 & 5 for next clue