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What heart could not be melted by kittens on the back porch? The icy heart of star web developer Jason Fried. Instead of letting a set of stray kittens (pictured) into his home, the 37signals co-founder sent photos to friend and blogebrity Sarah Hatter. Now Sarah is campaigning on Flickr to save the kitties.

Join the fight! Chime in with a comment on the saddest kitten pic. Let's see if we can get this onto Cute Overload.

Photos: Sarah Hatter's photos [Flickr]