Rick Taracks and his wujifa blog are rare gems in the world of IMAs. Good, solid info and a proper attitude towards building gongfu. Note that his students have actually managed to develop the classic IMA attributes : they are "song" (relaxed) enough that they can sink (chen) and fajin (express trained force) properly. A rare thing in IMA it seems...
Check it out
http://wujifaliangong.com/