PHILADELPHIA — Working under a national media spotlight, police recruits searched a wooded section of Cobbs Creek Park yesterday looking for clues about the fate of Latoyia Figueroa, a pregnant Philadelphia woman missing since July 18.

In a highly unusual move, police allowed reporters to shadow the searchers as they made their way through the high grass and underbrush.

"We want to get as much exposure as we can," said Lt. Frank J. Vanore Jr., who is heading the investigation.

For now, at least, exposure is not a problem.

Thanks largely to the efforts of a local Internet blogger, the Figueroa case is receiving plenty of national coverage, particularly from cable news.

"These missing-persons stories happen every day," said the blogger, Richard Blair, who operates a progressive political Web site at www.allspinzone.com. "But which become newsworthy? A lot of it has to do with skin color and economics, but more important, I think, is what catches somebody's eye. If you get the word out, news organizations will respond. That's what we did."

Late last week, Philadelphia police briefed reporters about the missing woman. But little coverage ensued.

So on Tuesday, Blair, thinking the case deserved more attention, dispatched a pointed e-mail to Nancy Grace, host of a nightly show on CNN Headline News. Grace's show has given constant coverage to the case of Natalee Holloway, the Alabama teenager missing in Aruba.

The e-mail read: "Latoyia Figueroa is still missing after 8 days. And as tragic as the Natalee Holloway case might be, Natalee doesn't have a 7-year-old child wondering where she is, nor was Natalee ... 5 months pregnant."

Blair also mentioned that the 24-year-old Figueroa was not white, did not have blond hair, and was not scheduled to get married last weekend — a reference to Jennifer Wilbanks, the so-called runaway bride whose disappearance dominated media reports earlier this year.

After Blair posted the e-mail on his site, two things happened. He sent the message out to a number of other Web sites, several of which posted it, generating a lot of supportive comment. And the e-mail to Grace got noticed by a CNN producer, who was spurred into action.

The results were immediate and dramatic.

Early Wednesday, CNN posted a story about Figueroa on its Web site, quoting Blair, among others. The network mentioned the story of the missing woman throughout the rest of the day.

The other cable-news outlets quickly joined in. The story was discussed Wednesday night on MSNBC, with news-show host Tucker Carlson mentioning the blogger.

"His point," Carlson said of Blair, "was the obvious one. And it is that black women from city centers, from urban areas, who disappear get none of the coverage that those like Natalee Holloway get, who are obviously from a different demographic. And, you know, it's impossible to deny the truth of this."

Several media analysts said they suspected that the cable-news stations, having heard the criticism of their coverage of such stories as Holloway's disappearance, were grateful for an opportunity to highlight a case that goes against the stereotype.

Whether increased publicity helps resolve missing-persons cases is another question. Asked if the publicity around the Figueroa case was putting more pressure on police here, Vanore replied: "I don't feel any pressure. We're going to do our job no matter what happens."

As officers, aided by a cadaver dog and a helicopter, did their work yesterday, Philadelphia Police Commissioner Sylvester Johnson said, "Our intentions are to cover every single inch of this park until we're satisfied there's nothing in the park."