Which is the best site to host photos on?

[tennisexpress]

For SEO and in general, which is the best website to host photos on and why:

Flickr.com or Picasa.com or Whosay.com?

[10JQKAs]

I've used Picasa and Flickr and have found Flickr to be my favorite.

Flickr has higher ranks and a larger community, increasing the chances of your pictures being found.

[infamia]

Old thread, but I'm doing some research into which of them do-follow or nofollow description links. I'll let you know what I find if someone doesn't beat me to it.