As 2009 draws to a close, The Foundry will be posting a series of Top Ten lists highlighting some of The Heritage Foundation’s most influential work. The Top Ten list of WebMemos below is sorted by pageviews below with the most popular memo at the bottom. If we left out your favorite, let us know in the comments.

10. Why the Personal Mandate to Buy Health Insurance Is Unprecedented and Unconstitutional
9. CBO Grossly Underestimates Cost of Cap and Trade
8. Son of Waxman-Markey: More Politics Makes for a More Costly Bill
7. Impact of the Waxman–Markey Climate Change Legislation on the States
6. Waxman-Markey Global Warming Bill: Economic Impact by Congressional District
5. A Principled Path to Rational Health Care Reform
4. Welfare Spendathon: House Stimulus Bill Will Cost Taxpayers $787 Billion in New Welfare Spending
3. 50 Examples of Government Waste
2. Stimulus Bill Abolishes Welfare Reform and Adds New Welfare Spending
1. The Economic Impact of Waxman–Markey