Some very good ideas on how to save them!

Does anyone have a tool/program/method that does a good job of cross indexing of different subjects in the photo. 

Such as Class of 1963 reunion, Debby, and College High School. Sorry, that was the best I could think of that you might want to index a picture on. 

Index for Over all reason, person in picture, location and what is special about the picture.

This might have been covered before, but I do not remember any comments like this is the best tool/program/method.