GIMP groups?

I belong to a few PSP groups where we have weekly challenges to create
different images and we can also show off our images, share tutorials,
, get help with the program, ect. I've been looking for something like
that for GIMP. Something with a few other ladies? So far, what I've
found seems to be mainly guys using GIMP to make manga style sig tags.
Does anyone know of any GIMP groups that would be similar to the PSP
groups I enjoy?

Melisa