as discribed here http://research.microsoft.com/en-us/um/redmond/groups/ivm/HDView/HDEmbed.htm
content can hosted on a photo sharing site such as Flickr. But How? (because of the subfolders)
(I dont like flicker so much, can I use my Skydrive?)
This only works for jpegs. You cannot host a DeepZoom tileset on Flickr or Skydrive. Notice that the Flickr example on that page references a jpg: http://farm4.static.flickr.com/3425/3200802651_976b2f141b_o_d.jpg