No one is donating to Mitt Romney.
(via TPM)
The unitemized donations are donations made by people like you and I who typically give anywhere from 5 to 25 dollars at a time, and they only account for roughly 13 percent of Romney's haul.
The Obama campaign had $102 million on hand at the end of March. The Romney campaign had $10 million.
One reason, among many, for the discrepancy in total cash on-hand is the amount of money that is being poured into Karl Rove's Crossroad PAC.