In October, the Santa Cruz, CA company plans to release People Putty software for creating your own VirtualFriends. Although it's meant as a resource and not an instruction manual, it does provide plenty of tips, notes, and examples that should get you on your way in using the various tags. The notes include cautions about which browsers don't support particular commands or attributes. The tips are little cues to make sure your code renders correctly on all browsers. The HTML Master Reference lists attributes and descriptors, both in their own entries and under the tags that use them.
Tags are cross-referenced to related tags, attributes, and descriptors.
The disc also contains all the source code and images used in the book. A robot from Quantified Web Systems is designed to test whether various servers are up, and notify you by email or pager if they aren't. Veribot periodically checks the availability of your Web server, mail server, secure server, DNS server, news server, and FTP server. If the services don't respond by a time that you've set, the program sends a warning email with specific details. If the services don't respond after three warning messages, the program sends an emergency message, which can be routed to a pager or cell phone with alphanumeric messaging.