Hillary Clinton will come home this month — if home is where the money is.

Having already pulled off victories in New York, Massachusetts, and California that preserved her candidacy last week, she or her campaign will go back to these venues next week. Ordinarily one wouldn’t expect a campaign to use its most precious resource, its candidate, in states she has already won.

But this year is anything out of the ordinary. Mrs. Clinton needs the money to compete in the next major primaries. At stake in the Ohio and Texas primaries on March 4 are 389 delegates, 19% of the 2,025 delegates needed to obtain the Democratic nomination. Senator Obama’s victories in Nebraska, Louisiana, Washington, and Maine will help him raise even more money, which could threaten Mrs. Clinton’s campaign ability to do the same.

That Mrs. Clinton has had any financial difficulty at all has been hard to comprehend for friends and foe alike. President Clinton built and benefited from a tremendous network of important fundraisers during the 1990s. The chairman of her campaign, Terence McAuliffe, is a legendary raiser of money who had a similar position with the Democratic National Committee.

Now Mrs. Clinton must struggle for every dollar just as she is fighting for every delegate and super delegate. She will return to one of the Clinton’s historic fundraising bases, Massachusetts, in February.

Another former chairman of the Democratic National Committee, Steven Grossman, is helping Mrs. Clinton fundraise in the state. Billed as an “Evening with Senator Hillary Rodham Clinton,” the event will have both a high end and small donor component. Tickets for a “Conversation with Hillary” at 6 p.m. cost $500, $1,000, or $2,300. Tickets for a bigger event for the New York Senator cost $100 and $250. Mr. McAuliffe told donors on a conference call on Thursday that there would be fundraising events in San Francisco and Los Angeles on February 19 and on February 21 in New York.

“She has a ground of support here that wants to step up and help her,” Mrs. Clinton’s New England finance director, John Patsavos, said, noting the well of good will she enjoys in Massachusetts, where she soundly defeated Mr. Obama last week.

It’s hard to believe that frequent fundraising spots, such as New York and Boston, could contain enough donors still able to contribute to the campaign, given campaign finance laws, which limit contributors to giving no more than $2,300 a candidate. The fact that the campaign is taking its candidate back to these locales indicates that some donors held off giving out of a sense of complacency about the campaign’s financial position, a sentiment that changed when they realized she had to dip into her own money.

While the campaign is hitting its centers of traditional fundraising, New York, California, and Massachusetts, it finally may be becoming more competitive on the Internet as well.

More significant than the $10 million the Clinton campaign was able to raise in just four days following Super Tuesday, were the new names of 100,000 campaign donors, most of them small dollar contributors.

Throughout the campaign, Mr. Obama has had a tremendous advantage in online fundraising. He has access to the donor lists of Moveon.org and Senator Kerry, both of which are viewed as the gold standard in the fundraising world. In the first two days after Super Tuesday his campaign took in more than $7 million. The Clinton campaign believes it has turned the tide.

“This is a major development in this race,” said the Clinton campaign’s Internet director, Peter Daou. “These 100,000-plus new donors who have contributed to the campaign in the past week will help sustain us as the race moves forward.”

The reports of her recent success online as well as her personal fundraising visits will mean that she be able to generate enough money and positive news to sustain her through five difficult contests — Maryland, Virginia, the District of Columbia, Hawaii, and Wisconsin. For a candidate in a fight for her life, it’s nice to feel like she can always go home.

Mr. Gitell (gitell.com) is a contributing editor of The New York Sun.