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

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

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

VoIP: Internet Linking for Radio Amateurs -- Where RF meets the Internet! A guide to four VoIP systems: EchoLink, IRLP, eQSO and WIRES-II.

ARRL's VHF Digital Handbook -- Now Shipping! -- Dive into the digital radio universe!