http://en.wikipedia.org/wiki/Bible_Student_movement
http://en.wikipedia.org/wiki/Jehovah's_Witnesses_splinter_groups
http://www.biblestudents.net/history/daughters_tower.htm
Bible Student groups while they may share some if not the same beliefs from Russell's day, do not have a central organization controlling them. Each one is independent.
Yes, Russell was only looking for those who claimed to be anointed and subscribed to his view and joined with him. He was focusing on 1914 as the gathering point for them to go to heaven showing that 1914 was the end not the beginning. He did not teach that the rest of humankind was going to be destroyed or that they had to search out an earthly class. He did believe that the infrastructures of politics, finance, religion would end.