3 million donors made a total of 6.5 million donations online adding up to more than $500 million. Of those 6.5 million donations, 6 million were in increments of $100 or less. The average online donation was $80, and the average Obama donor gave more than once. [...]

Obama also raised millions from traditional campaign bundlers -- rich, well-connected fundraisers -- but the bulk of the more than $600 million that Obama raised throughout the campaign was through the Internet, aides said. (Some of those bundlers, of course, also arranged for donations to be made online, so there is some overlap.)

In September, his single biggest month of fundraising, Obama amassed more than 65 percent of his record-shattering haul -- $100 million of the $150 million -- from online donations, aides said. After Alaska Gov. Sarah Palin dismissed the value of community organizing in her acceptance speech at the Republican National Convention on Sept. 3 -- "I guess a small-town mayor is sort of like a community organizer, except that you have actual responsibilities," she said to applause -- Obama raised $10 million within 24 hours.