I've put this topic in the OBW and kaleidoscope topic list. If you click on the link at the top left of the page (in blue), it will take you to a list of every topic on the board discussing these quilts. :D
BTW, the OBW technique does NOT fussy cut and there is hardly any waste - certainly no more than you'd get cutting out a conventional pattern. :-D
For this technique I'd say at least one of Maxine Rosenthal's books is indispensable and I've never seen any free tutes online. The one here on the board by Cutebuns was more of a sew-along with support for those working from either one of the OBW books or one of Bethany Reynold's Stack n Whack books. :-D