One of my best friends holds the title of being the ultimate postcard sender — I have come to expect witty and glittery postcards from her every Hallmark holiday. Sadly, most of us don't have her motivation and spend more time online than at the post office, which is the precise reason why I love Postalz. The site lets you create post cards with your Flickr photos and share them with individual recipients or the world via social networking or blogging sites like Facebook, myspace, or Blogger. I love the cards because of the photo element, which makes them seem deeply personal despite being online. It's never been easier to have a "pen" pal.