re: Our group was out on the corner in our town
I checked my Zip code on moveon.org for a protest near me. The answer was: "There are no events scheduled within 30 miles of you."
Nothing listed on the ANSWER site either. As you can see from the photos, nobody was using their preprinted signs, nor their slogans. Ditto for moveon's materials/slogans.
It obviously took a day to put this together, so of course "spontaneous" wouldn't be strictly accurate. But genuine? Absolutely. Nobody incited these suburbanites to take to the streets.