A couple of useful links that passed across my screen this week.

The first notes several sources of (free) software for plaining Windows media files of various types. It doesn’t link through to VLC, but the links there are useful too. See Play Windows media files on your Mac | Playlist | Macworld

The second is a piece of software that prevents your Mac from automatically going to sleep, dimming the screen or starting screen savers. Useful for quickly changing settings for presentation mode. See Lighthead – Caffeine.