For me, best known source of analog photos is lomography.com, but maybe something else is available? I know of Flickr, but when I’ve tried to use it for this purpose, experience was very poor.

In earlier days analog photography was the only choice, therefore photo archives have been compiled only with film photos. All professional photographers have been working with film. Using internet to look at images was troublesome, and I remember I had a CD with photos of tigers, and nature, and stuff (because how else would you look at a tiger on PC when you don’t have internet connection?). Maybe similar compilation is available to browse/download somewhere?

I feel like this CD is gaining its value again.