My mistake...I thought you were after live feeds ( if you ever do I can recommend WWF).
In the meantime...for RSS feeds:
21st Sextury Have a great feed for FOOTSIE BABES.
Traffic Cash Gold BAREFOOT MANIACS, some of the best.
Score Cash have LEG SEX. Again they have great feeds too!
Fetish Hitshave feeds for FOOT FETISH PORNO.
Silvercash have feeds for FOOT CRAVINGS & FOOT EROTICA.