I recently discovered that iN-PUBLiC's Nick Turpin has launched a biannual periodical called Publication. This incredibly well-produced collection contains images and essays of and about street photography and includes twenty-two images in the form of postcards with the photographer's biog on the reverse. Well worth £14 plus p&p - in my humble opinion - and each sale goes towards producing the next issue.
More info here: http://www.in-publication.com