Democrat Barack Obama's presidential campaign launched a new website Monday that has a single purpose: to track and highlight rival Hillary Clinton's negative comments about Obama.

The minisite, simply named Hillary Attacks, catalogs negative newspaper articles, speeches and press releases that the New York senator's campaign has issued that the Obama campaign says are personal attacks on Obama's character.

The site is the latest entry in a trend of specialized candidate microwebsites to refract opponents' campaign rhetoric in a way that's favorable to their own campaigns. Earlier this year Clinton's campaign launched The Fact Hub, an online rapid-response site responding to rumors and speculation from the campaign trail and the blogosphere. And North Carolina Democrat John Edwards launched a tongue-in-cheek Plants for Hillary website ahead of a recent televised presidential debate. That microsite, which has since been taken down, made fun of Clinton for her campaign's admitted planting of a question in an Iowa forum.

The Hillary Attacks site launches as Clinton and Obama are trying hard to distinguish their candidacies from one another in the minds of Iowans, who will be the first in the nation to start selecting their party's 2008 national-convention delegates next month. Negative campaigning has traditionally turned voters off the voting process, and polling shows that Iowans believe Clinton runs the most negative campaign. The latest poll results of likely caucus participants in Iowa show Clinton and Obama running neck and neck.

On the new Obama site, next to the excerpts of Clinton's negative attacks is an embedded YouTube video clip that shows Clinton saying at a Des Moines, Iowa, fundraising dinner that she's only interested in attacking America's problems – and Republicans. There's also a Hillary Attacks timeline, and a call from Obama's campaign manager for supporters to help the campaign keep a tally of all the attacks.

"Today we're launching a website that will keep track of all the attacks Senator Clinton has launched since she said she wasn't interested in attacking other Democrats at the Jefferson-Jackson Dinner on November 10," campaign manager David Plouffe wrote in a Monday-morning blog entry. "We're asking all of you to be vigilant and notify us immediately of any attacks from Senator Clinton or her supporters as soon as you see them, so that we can respond with the truth swiftly and forcefully.... These attacks could be phone calls, literature drops, blog posts, mail pieces as well as radio and TV ads. Some could even be anonymous or designed to be."

This is a "very, very impressive effort to enlist the full range of online campaign tools to exploit Hillary's biggest mistake in the campaign to date, which was to go after Obama's personal history (as opposed to his record and rhetoric) and say it was fun," notes Michael Cornfield, vice president of research and media strategy at consulting firm 720 Strategies in Washington D.C. Cornfield was referring to a remark Clinton made to the New York Times, reported Sunday, in which she criticized Obama for consistently launching personal attacks on her for the past several months.

Clinton's campaign was quick to respond to Obama's new site on Clinton's own press site, with a new entry that mirrored the Obama campaign's rhetoric. The entry linked to several of Obama's attacks on Clinton.

"When he entered the race, Sen. Obama said he believed in a new kind of politics where 'the campaigns shouldn't be about making each other look bad,'" read the entry. "He railed against the 'slash and burn, negative campaigning of the past.' His chief strategist said they didn't have a strategy to tear people down."