From your textbook:

• Forbes' Top 100, 2008 (MSExcel):  Celebrity earnings list with top ten and sports stars.  SI also offers its "Fortunate 50" (2010) top-earning American athletes (2008 MSExcel version here; 2007 MSExcel version here).  And, not to be left out, here is Business Week's Power 100 in sports for 2009 (compare to 2008).
• How Rookies CAN be Worth It: Darren Rovell on the National's Stephen Strasburg.
• 25 Highest Paid Coaches in the World: From BusinessPundit.com.
• Economic Perspectives on the Athlete's Body:  Stanford Economist Roger Noll on investing in an athletic career.
• International Competition for Talent :  The Canadian dollar used to be a disadvantage.  But now it isn't.  Remember, currency value is an indicator of  underlying willingness to pay!  Many others along this line: Big Loonie Saves Jays Some Cash, Sizzling Dollar Good News for Canadian NHL Teams.
• Golf Gini Data (MSExcel):  The data for the Gini coefficient figure in your textbook.
• Racial and Gender Report Cards and More:  Now published at the Institute for Diversity and Ethics in Sport, DeVos Sports Business Management Program, University of Central Florida.

Value of Sports Talent Links, Current Topics:

• What Would Jackie (Robinson) Think?  John Helyar Reflects on Racial Progress and MLB.  See also this article on the the distribution of African-American players in MLB by Nick Cafardo at the Boston Globe.
• Bill Veeck and the 1943 Phillies (PDF):  Bill Veeck claimed that he was about to purchase the Phillies in 1943, integrate them completely with African-American league stars, and dominate the NL.  Some have argued that it's an apocryphal story; but Jules Tygiel (noted historian, deceased) suggested otherwise. See his article on p. 109.
• A Recent "Bargains and Busts" Assessment of MLB Players:  Jeff Passan at Yahoo.com.
• Highest Paid Athletes, 2003 (MSExcel):  From Sports Business Journal.
• How Can Beckham Be Worth It to MLS?  Apparently, it's a no-brainer.  From Bloomberg.com.
• Why A Player's Life is So Tough in NY:  Bill Madden of the NY Daily News beats up on A-Rod and anybody who would buy his contract.
• An Economist Weighs in on the Value of A-Rod to the Yankees:  Whether you agree with his estimates or not, Stephen Walters offers the economic view of A-Rod's value to the Yankees.
• Baseball Commissioner Worth As Much As Vladimir Guerrero?:  MLB's tax return says yes.
• Shaq's Contract (MSExcel):  What isn't included here?
• Tennis Payouts, 2002 (MSExcel):  Thanks to Street&Smith's Sports Business Journal.
• Highest Paid Athletes in the UK, 2001 (MSExcel):  Thanks to Street&Smith's Sports Business Journal.
• NBA Rookie Contracts, 2003  (MSExcel):  From Sports Business Journal.
• Experience-Earnings Relationship, 1951 (MSExcel):  It has always been the same as for Randy Johnson, in your text.
• How Can LaBron James Be Worth It?  Chris Isidore at CNNMoney.com explains how James may actually be an underpaid teenage multimillionaire.
• Cot's Baseball Contracts:  Another page with all of the contracts, plus other team-level payroll listings.  Check out the fun quotes at Cot's Home Page.

Don't forget that all of the salary and payroll data are at the Sports Business Data Pages!