"A vote for Nader is a vote for Bush."

How can this be so in parts of America - most of America - where the margin between the two parties is so large that there is no practical possibility of swing? Slogans like that may well make sense in some places, but to treat them as if they applied everywhere just is not joined-up thinking.

As for the organisation thing - once you get over a hundred miles radius or so, geographical size doesn't really make much difference. What does make a difference is as has been pointed out, the Internet, and the extent of Internet access makes it far easier for people in America to organise ths kind of thing than in many other places. For example, all the Americans arguing about this thing on the Mudcat cold very easily arrange to scratch each other backs about this instead of trying to scratch each others eyes out. More especially those who, as members, have the use of the PM facility - GUESTs, nameless or otherwise, are at a bit of a disadvantage here.