The Ticker: Couric, O’Reilly, Gollust

By Brian 

> Richard Leiby names fans of Katie Couric “Couricista’s.” AND: Couric’s “charity work fighting colon cancer may be doing more harm than good,” according to a new study, Richard Bradley blogs.

> A Houston Chronicle columnist seems to accuse Bill O’Reilly of “misrepresentation that is unprofessional, unwarranted and injurious to the public debate.” (Via Gawker)

> Last week Nightline reported its highest ratings in the key 25-54 demographic since early February, and even beat Letterman for a night, FishBowlDC blogs.

> Allison Gollust has been promoted to senior vice president of NBC News communications.