It's the end of the year, so time to count the number of pennies the NIH has doled out in the last 12 months. Genetic Engineering and Biotechnology News published a list of the top 20 PIs of the year, and Barton F. Haynes at Duke University ($46,482,429) sits at the top of that pyramid.

The best-funded institutions were Johns Hopkins University ($566,516,255) and the University of Pennsylvania ($434,874,723). The list is somewhat deceiving, since Harvard doesn't make the top 25 because its independent hospitals are not included in the institution's total. It deserves to be there: In 2004, Harvard and its five domestic hospitals brought in a total of $852 million in extramural awards.

The source of the 2007 information is NIH Sales, which analyzes the agency's funding.