Ken Layne points out that Reuters and the New York Times are both running text ads on the popular group weblog MetaFilter. The ads, which apparently appears only on select pages, say:

Reuters - Iraq Updates

Breaking news as it happens. War updates and video footage.

NY Times: War in Iraq

Full coverage of the war in Iraq, including maps, multimedia, & more.

UPDATE: Clicking back on this link, I see that the ads are not displaying again at this point, as they are served dynamically. Robert points out (in the comments field here) that these are Google contextual ads.