The BlackWeb Project is based on top of the testing branch of Debian GNU/Linux, then most of the Debian documentation is valid for BlackWeb too.
The following is a list of good Debian resources every BlackWeb user should know
The Debian Administrator's Handbook the comprehensive user manual
Debian Reference, a terse user's guide with the focus on the shell command line
Before Installing BlackWeb Linux
Obtaining System Installation Media
Booting the Installation System
Using the BlackWeb Linux Installer
Booting Into Your New BlackWeb Linux System
III. Web Applications Analysis
VI. Wireless Attacks
VII. Reverse Engineering
VIII. Exploitation Tools
XI. Forensics
XII. Reporting Tools
XIII. Social Engineering Tools