I've just started a club on Facebook for people interested in observing the uposatha and discussing the benefits and challenges of doing so amidst the business of modern, "Western" life. Just search for Uposatha Observance Club on FB and I'll add you to the club. The next uposatha according to the Thai Dhammyut calendar is the 12th of October. Let me know what you think and advance apologies if I've posted this in the wrong place.
To avoid all evil, to cultivate good, and to cleanse one's mind — this is the teaching of the Buddhas.
Uposatha Observance Club:
My Practice Blog: