Placeholder Image Service with Curated CC-licensed Images from Flickr (p-hold.com)

Interesting CC pics from Flickr will certainly save me from adding more cat pictures to the web - http://placekitten.com/

Curious how this handles attribution.

Cute service, but if the name's not a joke, then it's pretty unfortunate :)

Unfortunately it doesn't support https-links yet and always shows a random image. But the filters are very nice. Check out http://lorempixel.com though the variety is a bit limited.