Load Images from External Sever/Site

I am searching this thing from quite good past.

What I do now, is use photobucket to host my blog images since its free, but images from it loads very slowly and doesn’t even loads most of the times.

So, is there anyway to automatically upload these Images which are currently hosted on Photobucket to any cloud site like Dropbox or Skydrive, and they will load from cloud site only from next time.

I currently have over 1000 images on Photobucket which are hosted on my Blog. so, I want each of them if possible.