I don't understand what the need for a chart or book is to be on or use QRZ.com.
It is not a whole lot different than here on eHam.net. There are forums about ham radio, a callsign lookup database, a swap meet section. There is a QRZ.com logbook if someone wants to use it, but I don't see any reason to myself.
The most difficulty people have with it is adding pictures to their callsign lookup page.
Are you sure you don't have QRZ.com confused with some other ham radio related subject like Echolink, LOTW, eQSL or something like that?