Here are some phenomenal corn mazes created in the US for the 2009 season, including the largest recorded corn maze. The most spectacular mazes are commercial in nature, often incorporating the name of the farm in the design. Enjoy!
Aircraft Owners and Pilots Association (AOPA)
Cookie's Barnyard Friends
Tom's Corn Maze
"Largest Recorded Corn Maze"
Can You Hear Me Now? (Verizon Wireless)