The most complete reference is the ARRL Operating Manual, now in its ninth edition.  Online, you can find resources in the On The Air section.

The Maidenhead system of defining location by grid square is defined on the ARRL Web site, including a grid square calculator, and in this Wikipedia article.

The ARRL’s Amateur Auxiliary is a volunteer organization that helps the Amateur Service remain self-policing and individual amateurs to operate with higher standards.

The popular AC6V Web site (maintained in memory of AC6V) keeps a long list of software for logging your contacts.  The ARRL also maintains a database of contacts called Logbook Of the World.  Many hams have their own QSL cards and exchange them either direct through the mail or via the international system of QSL bureaus.

You’ll need to refer to the online amateur band plans and beacon lists.  The Northern California DX Foundation’s system of HF beacons is also a great way to find out whether a band is open and to where!  You can also find who the Frequency Coordinator is in your area.  And everyone needs a frequency chart of the ham bands!

The four most-used digital repeater or relay protocols are:

• Internet Relay Linking Project (IRLP)
  
• Echolink
  
• D-STAR
  
• WIRES-II

The organization and practices of the National Traffic System are available online and a properly formatted radiogram can be seen here.  The ARRL’s FSD-218 is a handy single-page reference for traffic handling.  You can locate nets using the ARRL’s Net Search service.

The FCC’s Part 97 rules (Part 97.113 – Prohibited Transmissions) control the use of Amateur Radio transmissions in support of your employer.  These rules are changing rapidly, so watch for notices of question pool and FCC rule changes.  If you are a member of an emergency communications team, ask your leadership for information. The ARRL has prepared a set of guidelines on the subject and will update it as necessary.

• Part 97.407 of the FCC Rules covering RACES operation
  
• Federal Emergency Management Agency (FEMA)
  
• ARRL On-line Emcomm Courses

As referenced in Chapter 5, Battery University is a great resource for information about the use and maintenance of batteries.

The ARRL’s Operating Manual is your best single source for information on these and other ham radio activities.  Enjoy browsing the more than 3,000 different awards on K1BV’s Web directory of ham radio award programs.  For online information, go to the On The Air  section.  For fun, check out the following Web sites and print references:

• The Complete DXer by Bob Locher W9KNI
  
• Contesting.com
  
• ARRL Contests
  
• CQ VHF Contests
  
• ARRL Contest Update - biweekly email newsletter, free to ARRL members
  
• National Contest Journal - bimonthly magazine on contesting
  
• Field Day

The best place for comprehensive information on Amateur Radio satellites is the AMSAT organization that coordinates most amateur satellite information.

• Amateur Satellites - general information about communicating through the amateur satellites
  
• Amateur Radio on the ISS - learn all about contacting the International Space Station
  
• AMSAT - largest amateur satellite organization
  
• Earth-Moon-Earth or "Moonbounce" - information on this lengthiest of contacts and other interesting operating activities on the VHF+ bands

If you’re interested in “fast-scan” TV, check out ATV-TV and the P.C. Electronics Web sites. Slow-scan TV is comprehensively covered at KB4YZ’s Web site.  Meteor scatter communications is discussed in general on its Wikipedia article and more specifically to ham’s at N5KDA’s popular Web site.  You can find the software you need and more information on K1JT’s WSJT page.  The Wikipedia article on Radio-Controlled models is a good place to start for information on using ham radio in this novel way.