Building Wireless Community Networks -- Explore the 802.11b standard (also known as WiFi). 2nd edition.

802.11 Wireless Networks: The Definitive Guide -- Creating and administering wireless networks. 2nd Edition.

Morse Code for Radio Amateurs -- Includes a free CD of audio and computer programs.

The ARRL Image Communications Handbook -- Use Amateur Radio to see and talk with other hams! Enjoy the imaging modes: NBTV, ATV, SSTV and WEFAX.

The ARRL Software Library for Hams 2.0 -- CD-ROM, Version 2.0. Quick access to utilities, applications and information.