It appears from http://indieweb.org/photo#IndieWeb_Examples that there are way more than 3+ publishing sites that support u-photo

• Need to verify proper markup on those examples!

For consuming, known implementations include:

• 1. Woodwind.xyz
• photo-comment consumers https://indieweb.org/photo_comment#IndieWeb_Examples that then display those photo comments
• 2. Redwind
• WordPress through a plugin?
• Would be nice to to verify how @snarfed is implementing photo-comments
• Other consuming code:
• 3. Bridgy Publish consumes u-photo for purposes of POSSEing that photo to various destinations specifically as a photo. (update per @snarfed comment below)
• Would be nice to determine what other kinds of u-photo consuming code / libraries / applications there may be

This issue is for tracking the maturity of u-photo to transition it to a core property.

Once all the "Need to" items above have been processed and resolved successfully, we should be able to move forward.

cc: @kylewm @snarfed @aaronpk @benwerd

Update: confirmed 3 consuming sites/implementations. See Above.