Today's Best of the Blogosphere covers federal tax policy … Anthony of the Personal Finance Analyst blog lauds our historical look at federal income tax tables since 1913, saying it's "fascinating to see how income tax rates have changed from year to year and throughout history." Economics and finance professor Mark J. Perry of the University of Michigan's School of Management features our CompeteUSA campaign and our research on corporate taxes being out-of-line with the rest of the world on his blog, Carpe Diem. Mike Porter of Conservative Underground discusess windfall profit taxes on oil companies and cites our data on how much these companies pay in taxes and compliance. Cyber Homes, a blog that provides "resources for every step in real estate," features our research on local property taxes. … and state tax policy. Joshua Sharf of Denver cites our State-Local Tax Burden Study on the Media Research Center's News Busters blog and Red County when responding to a Denver Post story on Coloradoans being stingy when it comes to taxes. Adam Pagnucco of Maryland Politics Watch reassesses his view of Maryland Delegate Al Carr's Commercial Assessment Rate Review (CARR) bill, and mentions the Free State's slide from 24th to 45th in the 2009 State Business Tax Climate Index. Oklahome State Rep. James Murphy (R-District 31) encourages the repeal of the state income tax on The McCarville Report Online, mentioning our State-Local Tax Burden Study. MGamo blogs on RedState about the Rhode Island motorist tax and talks about the Ocean State's ranking in the 2009 State Business Tax Climate Index. DuluthJournal.com uses our data on federal tax dollars received vs tax dollars paid in a post on Minnesota's budget shortfall. If you have a Twitter account, don't forget to follow us at http://twitter.com/taxfoundation.