Obama ran the first successful Facebook presidential campaign, according to former CTO of the United States Daniel Weitzner: "...he ran the first successful Facebook presidential campaign." "Facebook proved to be, for all of its privacy downsides, this extraordinary community organising tool...it wasn't a tool that manipulated people; it was a tool that brought people together in their excitement..." "Now we've seen some of the dark sides of that, but the medium still has this incredible…