Thanks for asking. It's illegal to use images you don't own the rights to, so doing so is not allowed on Card Karma. Any images reported by users or discovered by admins to be stolen will be removed from the site (and will go missing in your cards!)

Love this little app. I think its ok because he only uses images with Free to Share licenses and then attributes the work to the original photographer.

ie this card http://kr.ma/h2

has an image that uses this license: http://creativecommons.org/licenses/by/2.0/deed.en_CA