The slides from Lecture 1 are on the course web site now.
I mentioned John F. Banzhaf III in class; he's got quite a web site there, in which he proudly declaims about being the "Osama bin Laden of torts", among other things. I guess he's famous for suing McDonald's (over obesity) and tobacco companies. Apparently he's part of the reason for smoking bans in the UK and other countries. He also shows up in the news these days as a commenter on the Duke Lacrosse happening.
Anyway, he's frequently credited with describing the notion of influences of voters on elections we discussed in class. That came about when he sued the Nassau County Board for having an unfair voting scheme; they passed proposals according to the following boolean function:
$f(x)$ = 1 iff $9x_1 + 9x_2 + 7x_3 + 3x_4 + x_5 + x_6 \geq 16$.
You can check that for this $f$, $Inf_4(f)$ = $Inf_5(f)$ = $Inf_6(f)$ = 0.
More interesting info on measuring the power of voters is here:
Banzhaf Power Index