David Carr’s report in the New York Times that Boston-based GlobalPost will partner with CBS News strikes me as a potentially significant development.

It’s unclear from Carr’s story exactly how much use CBS intends to make of GlobalPost’s journalism. But this could be just the boost that Phil Balboni, Charlie Sennott and company need to keep GlobalPost moving forward.

Particularly eye-catching were a couple of numbers. GlobalPost is reportedly attracting 400,000 unique visitors per month, which appears to impress Carr, but which strikes me as dangerously low — even if it’s as good as could be expected for a new project. (For purposes of comparison, the Boston Globe’s Web site, Boston.com, attracts between 4 million and 5 million unique visitors each month.)

Even worse, only a few hundred people have signed up for premium (paid) membership.

Anyone who’s perused the site, though, knows that GlobalPost’s journalism is both engaging and substantive. With network news divisions cutting their international reporting to the bone, GlobalPost has a real opportunity.