Many many (great) additions/clarifications have been made the Geek Girl list in the comments about geek representations in mainstream media. Two of the most important additions/comments were 1) “One glaring omission is Lisa Simpson” (Could not agree more ) 2) “Gadget was a mouse, not a chipmunk!” 
Also, for those that may not know, here is Nerd Girls, which I have written about in the past and really deserves to be part of this conversation.
I have added some more comments and thoughts but below in the comment section.