you can download (store) them from Webshots or Photogra back onto your hard drive.
Unfortunately Phred this is no longer true! I was in the process of doing this when Photogra told me I couldn't any longer do so. I had to beg them for special access to some photos I had (stupidly) stored no where else.

I'll see if Webshots will still let me store on my harddrive and then load.