I think there area a couple of tribes that have lots of people who are in Japan or have visited and they discuss the Harajuku culture. Also, check out myspace.com, there are lots of groups on this topic.

i have spent time in/around Harajuku, and have osmosed a lot of their cultural material, so i could talk a certain bit... Still, i hardly think i could give you a knowledgable "scoop" on the scene. Perhaps someone who could is Faith Shinri, a fairly well-known Person Who Knows What She's Talking About in the gothloli scene (she wrote an article on the English-language site for the movie Kamikaze Girls, for example). Her site can be found here:
www.lerman.biz/asagao/gothic_lolita.html

Her G&L Style Guide, found here: www.lerman.biz/asagao/got.../guide.html , is particularly well-known, accurate and useful, as she is a cultural anthropologist and conducts her research and findings as such.

Oh, and one other thing to keep in mind: Harajuku is, as a fashion district, far more filled with retro and Fruits-y/KERA-type shops, Vivienne Westwood, used clothing stores and Bathing Ape and its clones than it is with Gothic Lolita. In fact, it can be frighteningly difficult to find Gosurori shops in Harajuku; they are mostly tucked away at the very ends of the smallest alleyways (H. Naoto, for example), barely visible and accesible only by a stairway to a basement shop (as in Putumayo), or inside a large department store/mall shop. So, while Gothloli/lolita and Harajuku are heavily associated with each other in American culture, they are much less associated in Japanese culture, and even though Harajuku is known as one of the primary loli areas in Tokyo and in Japan, it is better-known simply as a Mecca for subculture and street fashion in general. Nowadays especially, lolis are drifting off to other, less famous and tourist-infested areas such as Shinjuku and even Shibuya. It was never a showoffy, grandstanding style to begin with, and now it becomes even less so as it's given international attention that it doesn't necessarily want.