In the printed and online editions, at the end of his opinion column about the North Korean nuclear weapons, The New York Times Nicholas D. Kristof adds:

After my reports from Africa about ethnic cleansing in the Darfur region of Sudan, many readers have asked what they can do. I've put some possibilities on my blog, www.nytimes.com/kristofresponds, in Posting No. 344.

That's an excellent use of a blog by a newspaper.