At my blog, Balladeer's Blog, my slogan is "Singing the praises of those things that slip through the cultural cracks." Part of my coverage is of lesser-exposed mythological pantheons. Since the Graeco-Roman, Teutono-Norse, Egyptian and to a lesser degree Hindu pantheons get most of the attention I've done entries on Navajo myth and Bunyoro myth for a start. Below are the links:
http://glitternight.com/navajo-mythology/
http://glitternight.com/bunyoro-mythology/
Ed Wozniak