Centennial Celebration Bottle

I found this at an antique store; It was at a fairly reasonable price, so I bought it.

It says (outside):
Annual Meeting
of Shareholders
The Coca-Cola Company
Atlanta, Georgia
April 16, 1986

Is this worth anything, were these only available to shareholders?

Also what is the best Coca-Cola collecting guide out there, and how often do they come out with new editions?