I was recently reviewing a number of alternatives to Picasa Web Albums for my full photo library online hosting. The Picasa is fine when you host 20-30 albums, but in my case when the number is many hundreds it’s impossible to use as it doesn’t allow any classification of ablums to be made and used for search.
At the end of all the photo hosting and cloud storage services able to host my full photo library in screen resolution I have selected (surprise!) Microsoft’s SkyDrive. It’s cheap, supports hierarchy of folders and auto-sync and also has relatively decent photo viewer. Here is the public part of my library from now on: http://sdrv.ms/Ur74PN