It's no secret that Gothamist loves Flickr-- we recommend the photo-sharing service to all of our friends, get lots of story ideas from browsing Flickr tags, and even use it to power our Contribute page. Now we're found one more reason to love Flickr: its API powers the Delivr service, which allows you to make e-cards in just a couple of clicks. Just put in your keyword ("xmas", "hannukah", "cats"), pick the image, add the message, and send-- the recipient gets an email with the card-- no spam, no ad links, just pure holiday greeting goodness. Try it out!