In recent years, I've been learning various forms of neijia from Paul Cote as part of the Yin Cheng Gong Fa martial arts organization, led by Zhang Yun in the United States. YCGF teaches a number of arts passed down by the late Grandmaster Wang Peisheng
One art I've been learning is the linear baguazhang of Liu Dekuan. It consists of 64 short forms strung together into eight lines of eight, one for each hexagram of the Taoist Yijing. Our study group has recently finished its first pass through those 64 forms.
For those interested, there is a flash video on a Chinese Website which shows Wang Shitai practicing Master Wang's 64 linear changes of Liu Bagua. The page may be slow to load -- the site seems to be a Chinese-language video sharing site. With a little searching around, I did manage to find a higher-quality scan of one of Wang Peisheng's taijiquan demonstrations, than is available elsewhere. Enjoy!