I have to applaud The Washington Post for embracing Web 2.0 quicker than I thought any newspaper would. They've launched a blog called "Post Remix" that highlights some of the useful things that readers have developed using Washington Post content. Granted, the reader created applications aren't really that impressive right now. But the impressive part is that The Washington Post sees value in opening up their content to users.
You can read a little more on the subject at Influx Insights.