What's fair when it comes to fair use?

The practice of linking has been part of the regular practice of blogs since their inception. But a decision by the Associated Press to set clear standards on how much its dispatches may be reproduced on the Web has triggered a blogosphere controversy.

Last week the AP sent a takedown notice to the Drudge Retort asking it to remove seven items that contained quotes from AP articles ranging from 39 words to 79 words.

I sat down with Dan Farber, CNET News.com's editor in chief, to talk in more detail about the issues involved.