Many of you may already know about this site, but in addition to domina reviews and all that stuff, maxfisch.com has the most comprehensive list of worldwide events I've seen.
WARNING: This site is 18+. The following link will take you directly to the maxfisch.com events calender. If you are easily offended by "adult" content, click on it at your own risk. Click here to access the calender. Another warning: the site loads slow as hell.