PLL´s theories

http://www.youtube.com/watch?v=PSpetVO3UMk

http://www.youtube.com/watch?v=ab7xKgUQaHA&feature=related

http://www.youtube.com/watch?annotation_id=annotation_843740&feature=iv&src_vid=ab7xKgUQaHA&v=knuzv54gr_U

http://www.youtube.com/watch?v=F93373jTmCQ&feature=related

http://www.youtube.com/watch?v=v8PT1FX5SNo&feature=related

http://www.youtube.com/watch?v=oXg1oXZewLE&feature=related