“PLT” refers to the group that is the core of the Racket development team. PLT consists of numerous people distributed across several different universities in the USA:

• Northeastern University, Boston, MA
• University of Utah, Salt Lake City, UT
• Northwestern University, Evanston, IL
• Brown University, Providence, RI
• University of Massachussets, Lowell, Lowell, MA
• California Polytechnic State University, San Luis Obispo, CA
• Worcester Polytechnic Institute, Worcester, MA
• Indiana University, Bloomington, IN

Also, Racket is supported by a band of volunteers who contribute not only code and documentation but also infectious enthusiasm—too many to name but whose help and encouragement make this fun and worthwhile.