Cir­cu­lat­ing now: Art of the Busi­ness Card — a pho­to­set on Flickr — I rec­om­mend the slideshow.  Some fab­u­lous work in the set, though my per­sonal bias is against any­thing out­side of stan­dard busi­ness card dimen­sions if it won’t fit in a stan­dard card holder or file.  Break rules, but keep cer­tain ones intact.