The folks at Moo.com make lovely postcards as well as greeting cards and “friendship” cards (though i suppose could be used for your business-type introductions as well). One of the great aspects –along with the exceptional quality – is you can choose a different “front” for each in the batch of 100. In other words: all the same on the back, all different on the front. Can upload images via Flickr or directly (and other ways too).
Anyhow, this is batch of postcards, received in June 2015, was made with my collections of art on the front including the “Gravelly Beach” series, static montage, global rambles and so on. They were quickly written upon and/or shared in other ways. You can get a special deal on shipping and help me keep up my postcards habit but ordering via my magic Moo.com affiliate link.