Arcadi Gaydamak has an official Facebook page where you can reach him upon his approval of friendship.

http://www.facebook.com/people/Arcadi-Gaydamak/100001931362110

He is a very nice genteman who gave enormous donations to the state of Israel when the state needed it most, that is, during the war in Lebanon and the attacks of the missiles from Gaza to Sderot and south of Israel. Many people in Israel regard Mr. Gaydamak highly and respect him for his contributions.

For more information you can write to him on his email on Facebook, if the admin approves you as a "friend."