Interesting subject, does lighting travel from air to ground, ground to air or both? To the best of my knowledge, lighting will do what lighting wishes to do, its one of natures 900 lb gorillas. The net is a wonderful source of information, but always remember, vacuum salesmen sell vacuums. Do due diligence before writing a check.
Effectiveness of lightning rods or do a google search on what you want to know. Good luck.