Overloaded with Extensions -- Teng Chou Ming has released the $10 shareware Extension Overload 2.7, a stand-alone DOCMaker document that provides information about 666 extensions, 245 control panels, Easter Eggs, Macintosh error codes, and more. It's smaller than, but otherwise quite similar to, Dan Frakes's InformINIT 8.1 (see "InformINIT: Your Personal Macintosh Informant" in TidBITS-429). Although there's obviously much overlap between the two, they provide complementary information in places. Extension Overload is a 227K download. [ACE]
Access OpenType Font Features
OpenType fonts (.otf) often have special features, such as swashes and alternate characters, that are accessible in any app that uses the OS X font panel, including Pages and TextEdit. To access them, type and select your text, press Command-T to open the font panel, and then choose Typography from the Actions pop-up menu. That shows the Typography panel, where you can toggle available options for the font and characters you've selected.