Here is an in-depth look at the relationship between Reuters and Matt Drudge and Andrew Breitbart. Drudge and Breitbart's business decisions couldn't be more brilliant, so I suspect their relationship with the news wire service is equally genius. After a legal fracas, Reuters and Breitbart made an arrangement that including using a click-tracking code in Reuters URLs-like that used for Amazon "partner" links, basically-which indicates a commercial understanding.
The Drudge Report linked to Reuters.com just 29 times from January 1, 2005 to October 14, 2005. Then, Breitbart signed his new deal to drive traffic to Reuters.com for money. From October 15, 2005 to December 31, 2005, the Drudge Report linked to Reuters.com 229 times. In all fairness, it may be that this abrupt 2900% increase in Reuters.com links didn't have all that much impact on the Drudge Report's content.