4-Patch and Furrows uses a lot of little squares, but isn't what I'd call a postage stamp quilt.
Scrappy Bargello may have been what they were referring to:
http://www.quiltville.com/scrapbargello.shtml
or perhaps Scrappy Trip Around the World:
http://www.quiltville.com/scrappytrips.shtml
But I'm not sure if either of those patterns uses individually cut blocks. I think they involve some strip piecing/cutting