In May, GMAC changed its bank's name to Ally Bank--as in friend, or confidante.

FORBES: Magazine Article

With a 1.35% annual yield, Sallie Mae is looking to pick the pockets of established online-account players like Capital One and Ally Bank (the new business name of GMAC), which respectively offer yields as high as 1.45% and 1.39%.

FORBES: Sallie Mae Jumps Into Online Banking