Obama raised four times as much as John McCain from contributions less than $200.

Source BBC

Tracking campaign finance

FINANCIAL OVERVIEW as of 31 July 2008



Barack Obama has raised more money than John McCain partly because of the excitement generated by the Democratic nomination battle. His donors had pressing reasons to donate, from January right through to June, while Mr McCain wrapped up the Republican nomination in March.
Mr McCain has decided to take public financing, which means that from 1 September he has a maximum of $84m [£45m] to spend on his campaign. The McCain campaign is no longer accepting donations, except to its compliance fund - money to pay for lawyers, accountants and other expenses involved in maintaining compliance with federal election laws. The Republican National Committee, however, can still raise money to support the McCain campaign.
Barack Obama is the first candidate not to take public financing since the system was introduced in the mid-1970s. He will have no spending limit.
The Obama campaign has also broken the mould of US election finance by making big efforts to attract small donors. As a result Mr Obama has raised almost four times as much as John McCain from donors contributing less than $200. More