Let me clarify one thing - all these online picture-sorting sites are only somewhat of a solution. There are some issues that you have to know of going in. A few of the important ones were already mentioned by others upthread (possibility of deletion, compression). As I breifly touched upon in my last post, there are orginization issues as well. Also to consider is that even if you could download your pictures, it'll likely have to be done one at a time, and they may get new and confusing filenames.
With that in mind, the best cloud solution is not a photo-sharing site, but a backup provider. I personally use Crash Plan, but there are many options out there. For $5-10 a month every file on your computer will be backed up and could be retrieved and downloaded exactly as it was.
My personal backup plan consists of:
- A complete weekly backup of every single file on my computer to an external drive.
- 2 daily backups of all important files (all pictures, working video files, certain documents, etc.) to a third drive and fourth drive.
- A continuous backup of every file to Crash Plan.
That means that at any given time I have at least 3 backups of everything, plus 2 additional backups of my most important files.