Diskless-NFS HOWTO - The purpose of this Howto is to explain how to use a diskless workstation using NFS Root mounted clients. - http://en.tldp.org/HOWTO/Diskless-root-NFS-HOWTO.html
netboot - Using Netboot, Linux and X window system on diskless systems. - http://netboot.sourceforge.net/
DNA Lounge: Source Code: Diskless Linux Kiosks - Howto setup kiosks to boot over a network, NFS mount everything, and run applications locally. - http://www.dnalounge.com/backstage/src/kiosk/
Diskless Linux Workstations - Company builds and sells diskless Linux workstations, boot ROMs, network cards, software, hardware, business bundles. - http://www.disklessworkstations.com/
Linux Terminal Server Project - Information on low cost, Linux graphical diskless workstations, boot roms, bootrom, software, and hardware. - http://www.ltsp.org/
BpBatch homepage - Remote boot tools and services. - http://www.bpbatch.org/