The first Tuesday of every month I lead a Beit Midrash session at the Stanton St. Shul. These topics vary from month to month, often coinciding with the Jewish or secular calendar. This month, I chose to deal with some issues of Avoda Zara due to some questions which kept coming up lately in shul.
This class is by no means comprehensive; covering this topic properly would probably take at least a year. Still the point is to raise certain issues and hopefully lead people to ask better halakhic questions.