Here are various resources to help you further your knowledge of Ham Radio in preparation for upgrading your license.

• ARRL Licensing
• Getting Started in Ham Radio (Hello Radio)
• Find an Elmer
• ARRL Exam Sessions (then search by state)
• Denver Radio Club - VE Testing, by appointment
• Northern Colorado Amateur Radio Club - VE Testing
• Park County Radio Club - VE Testing
• Pikes Peak Radio Amateur Association - VE Testing

• ARRL Class Sessions Search (then search by state)
• Denver Radio Club (has info on classes and tests)
• Pikes Peak Radio Amateur Association (has info on classes)

• http://www.arrl.org/question-pools
• E-Ham
• QRZ