Sandy Rios at OneNewsNow gives a very revealing take here on why Sarah Palin stepped down as Alaska governor. Hint: it has a lot less to do with future ambitions than you think.
Yes, it's possible (as Roger Stone notes at his website here) she took a page from Richard Nixon's playbook which led to his election in 1968, after losing the 1960 presidential race to JFK and the California governorship to Pat Brown two years later (after which he famously said, "You won't have Dick Nixon to kick around anymore"). But Rios' insight should make all decent people want to support Palin even more, if she chooses to run for president in 2012 to save what's left of our country.
One more note: Palin says the constant barrage of frivolous "ethics complaints" by left-wing opponents was a major factor of her decision to step down (since it drained her resources and time to defend herself, instead of serving the state). The next assignment for any REAL journalists: try to find out how many of these kooky complaints originated with those working for ACORN, Obama's political Gestapo.