Where do I find a glossary of all the little icons used on Trainboard and the forums? CJT (the other Charlie)
Most of what I believe you're referring to will actually (and helpfully) explain themselves. If you hold the mouse cursor over a particular icon, an explanation "baloon" should appear. In the specific case of the eyeglasses, that indicates "Watched," meaning that someone has made the choice to watch a thread.
