Server Load Balancing, by Tony Bourke (O'Reilly, 2001).
Load Balancing Servers, Firewalls, and Caches, by Chandra Kopparapu (Wiley, 2002).
High Availability Network Fundamentals, by Chris Oggerino (Cisco Press 2001).
High Availability Networking with Cisco, by Vincent C. Jones (Addison-Wesley, 2001).
VRRP, by A. Srikanth and A. A. Onart (Addison-Wesley, 2003).
Blueprints for High Availability, by E. Marcus and H. Stern (Wiley, 2000).
RFC 1256, "Internet Router Discovery Protocol (IRDP)"
routed manual page, routed(8)
The CARP manual page, http://www.openbsd.org/cgi-bin/man.cgi?query=carp&sektion=4
http://www.supersparrow.org/
http://www.linuxvirtualserver.org/
http://www.ultramonkey.org/
http://www.linux-ha.org/
The squid proxy, http://www.squid-cache.org/
The VRRP Protocol for UNIX, http://www.imagestream.com/VRRP.html
The HighUpTime Project, http://www.bsdshell.net/
The PEN load balancer, http://siag.nu/pen/
Pure Load Balancer, http://plb.sunsite.dk/
CARP architecture and examples, http://www.countersiege.com/doc/pfsync-carp/
Carnegie Mellon University anycast resources, http://www.net.cmu.edu/pres/anycast/