Hmm I don't have the photo index, just Vol.1, 2 & 3. Wonder if I should look into it.
I do not believe books are necessarily an outdated way of getting information and have access to over 250 books here (plus many more magazines) when referencing for articles, as well as searching the Net.
Although a great source of information, the Net is also a great source of misinformation. I always double check anything I find on the Net (unless I am sure of the source). Having said that, I know books are not infallible either and Axelrod's Atlases also have their fair share of mistakes.
Despite the Net, I certainly do need, and buy, books and will continue to do so.
I rarely use my Axelrods any more but regularly check with my Baensch's as they are more informative.