Does ClickMeeting work on a Mac?

Yes, ClickMeeting is fully compatible with a Mac. Mac requirements are:

1.83 GHz Intel CoreTM Duo or faster processor
Mac OS X v10.4, 10.5, 10.6 (Intel) or higher
512 MB of RAM (1 GB recommended)
Mozilla Firefox 3 or higher; Apple Safari 4 or 5; Google Chrome

The latest version of Adobe ® Flash® Player for all users (hosts, presenters, participants, and administrators).