Also visit the National (USA) Lightning Safety Institute at http://www.lightningsafety.com/nlsi_lhm.html which has many technical specifics on protecting all sorts of facilities. Just about all the published technical specifications put out by government and technical groups are available...
Try this:
http://tech.groups.yahoo.com/group/LightningProtection/
Lightning Protection and Power Quality Forum
Forum participants discuss of all areas of power quality - lightning protection, uninterruptible power systems, surge protection, harmonic distortion mitigation, debunking...