Move Your Money is a project that encourages account holders at Wall Street's bailed out banks to withdraw their money and deposit it into community banks and credit unions.
Arianna explained that the goal isn't to hurt banks, but to make them accountable by eliminating the limitless government support that they've used to generate record profits and bonuses.
When Marketplace's Tess Vigeland asked if Move Your Money could make a dent in banks' bottom lines, Arianna explained why banks will take notice:
"Well, it actually makes a big difference, because the core deposits that the banks rely on, are very important to the bottom line. Just to give you an idea: This year alone, banks are expected to make $38 billion -- the big banks -- on overdraft fees." (Read the whole transcript here.)
Listen to the interview: