Here are some more links about foundation piecing that folks may find useful. A couple of them have some good diagrams. Have already posted these in the july BOM thread, but thought they may be useful here, Cheers ShellyQ
http://www.nmia.com/~mgdesign/qor/technique/pfp.htm
http://www.winnowing.com/ppp.html
http://www.quiltdesignnw.com/tips_p_piece.htm