According to Politico, it "suggests that she has begun building a more sophisticated political operation in place of a bare-bones organization powered mostly by her rock star status and scrappy on-line presence."
...In short, for the first time since the 2008 campaign when she was the vice-presidential running mate to GOP presidential candidate John McCain, Palin is supported by a political operation befitting someone considering a presidential run.
Some argue that the cash flow is the product of her developing her own fundraising operations sans John McCain.