Journalism professor Jay Rosen has written another of his characteristically long-winded but thoughtful ruminations on the fallout from the Dan Rather memo affair and what it means for the long-running battle between conservatives and the "liberal media," as well as for the more recent contest between traditional media and online bloggers.

"Wal-Mart is working with Hill & Knowlton on a PR campaign designed to rehabilitate the much-maligned company's reputation in California and pave the way for 40 new Wal-Mart Supercenters in the state in the next few years," PR Week reports.

The Wisconsin Advertising Project estimates that "many voters - nearly 60 percent - have not been exposed to any of the 530,000 campaign ads aired so far in the most expensive presidential campaign ever." A companion project researching local TV news "found only 44 percent of local stations offer[ed] any campaign coverage at all in the 2002 elections.