Can I use Photobucket instead of Flickr for photo sharing in Story Maps?
The story maps built-in functionality allows for Facebook, Flickr, and Picasa (and it will likely migrate to Google Photos since Picasa is defunct now). Though, if you are wanting to load a spreadsheet that has the link for each photo, photobucket will work when you can link straight to the .jpg of the file.
As far as I can tell, you can add photos from Facebook, Flickr, and Picasa, according to the documentation for Story Maps.
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