Jan, are you interested in who's been published.....or how you go about being published yourself????
When I wrote my book I sent a proposal (they have a form to fill out) to the publisher. After it was approved, then I got the manuscript together and we went from there.
http://www.amazon.com/Ultimate-Book-Quilt-Labels-Quilting/dp/1564771466/ref=sr_1_1?ie=UTF8&s=books&qid=1239233475&sr=1-1
(It was my 15 minutes of fame, but it's long since out of print and outdated.)
Some magazines accept articles that are sent in for their publications, and sometimes they ask for submissions for quilt photos. Also, some hold contests and ask for quilts, like the Keepsake Quilting catalog (which I won "staff's choice" one year!)
Let us know if we can see something you get published!