The most striking feature of Barack Obama’s campaign for the presidency was the amazing, young, Internet-enabled, grass-roots movement he mobilized to get elected. The most striking feature of Obama’s presidency a year later is how thoroughly that movement has disappeared.

In part, it disappeared because the Obama team let it disappear, as Obama moved to pass what was necessary  the economic stimulus  and what he aspired to  health care  by exclusively playing inside baseball with Congress. The president seems to have thought that his majorities in the Senate and the House were so big that he never really had to mobilize “the people” to drive his agenda. Obama turned all his supporters into spectators of The Harry and Nancy Show. And, at the same time, that grass-roots movement went dormant on its own, apparently thinking that just getting the first African-American elected as president was the moon shot of this generation, and nothing more was necessary.

Well, here’s my free advice to Obama, post-Massachusetts. If you think that the right response is to unleash a populist backlash against bankers, you’re wrong. Please, please re-regulate the banks in a smart way. But remember: in the long run, Americans don’t rally to angry politicians. They do not bring out the best in us. We rally to inspirational, hopeful ones. They bring out the best in us. And right now we need to be at our best.

Obama should launch his own moon shot. What the country needs most now is not more government stimulus, but more stimulation. We need to get millions of American kids, not just the geniuses, excited about innovation and entrepreneurship again. We need to make 2010 what Obama should have made 2009: the year of innovation, the year of making our pie bigger, the year of “Start-Up America.”