The DNC could become the main small-donor fundraising vehicle. Technically it wouldn't be that difficult: the main DNC site is already running the same social networking toolset that my.barack is based on. They might even be able to do some kind of bulk import. (after an opt-in, of course)
This would be exciting for a lot of reasons: for one, it could move lots of people into a potential long-term small-donation bloc for the DNC, which would be an outstanding gift to this country. This could also form the electronic nervous system for the ongoing movement, which could then be applied to other races down the ticket.
Of course it would present a huge challenge, in that many independent and Republican voters might feel uncomfortable giving the DNC money. But here in CA, Dem registration is finally growing faster than "Decline to State" (California-ese for independent) reg. So maybe things are turning around; people are realizing that they have to do more than vote, that they really need to join a party to do that, and that they may not be completely comfortable being a Dem, they definitely aren't Rs.

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Another Possibility
With over 90 percent of Obama's donations under $100, another possibility is for him to announce that he will limit his donors to no more than $100.
This may provide enough cover to defend against the attacks that will come by not accepting the Federal dollars.
Andrew Rasiej