[JonnieCache]

I agree. This (or a similar tool) is set to become a genuinely useful part of my web development toolkit.

If it used random CC images from flickr, rather than kittens, I wonder if there would be so much objection.

If you let the /b/tards' love of kittens forever bond the "kitten" symbol in your brain indelibly to the "idiocy" symbol, you are letting the /b/tards win. They are just mammals. (Kittens, not /b/tards.)

However, it probably doesn't warrant the #1 spot.

[kellishaver]

I was about to post the exact same thing. It would be cool if there was a service that pulled CC licensed photos from Flickr for this purpose and scaled them according to the user's wishes, pulling from an archive of photos based on aspect ratio, size, etc.

[Andrenid]

I would most definitely use a version of this that pulled random photos from Flickr. That's a brilliant idea. Would also give clients a much better view of a mockup than just the gray boxes, by seeing what a mixture of different coloured photos look like.