Picasa’s been a permanent part of my PC since it first came out many years ago.
It’s easy to use, has plenty of tools for photo manipulation, a (relatively) easy to operate filing system and it’s free. So what’s not to like?
One of the gems of flash features which your students (and probably you too) will like is the picture pile function.
I wrote two sample pages on this feature for an unpublished book on utilising freeware in the classroom. Download and enjoy!