I’ve recently joined the User Experience chapter of Stack Exchange. Though I’ve been on for only a week, this is a community I am excited about joining. It is a terrific community for exchange knowledge and providing answers to questions on user experience.
I’ve been getting a lot more requests lately by email for User Experience questions which I am happy to answer. However it you are comfortable, posting on Stack Exchange would allow others to use the feedback myself and others of the community provide to help with user experience.