We know the Romney campaign isn't looking for a she-who-should-not-be-named. Romney doesn't want to pull a McCain. A lot of conservatives would like to see Michele Bachmann as veep. I think he'll choose someone known by all as a conservative, to counter Mitt's "severe" conservatism. No one really knows what Mitt is.
It is rumored Kelly Ayotte, a Senator from N.H., is being considered. She's pretty conservative. She is against abortion except in the case of rape, incest or the health of the mother, which may be a ding for her. Plusses for her -- if you're a conservative -- she's against gay people getting married and adopting kids. She opposes unions. Like Mitt, she supports Arizona's immigration law. She's not sure that humans have anything to do with climate change. And yet, some conservatives don't think she's severe enough (post from 2010). Here's more on Ayotte.
Obama announced Joe Biden as his vice president in 2008 in late August.
Do you have an offshore bank account? An effective ad from the Obama campaign: