(n.) A hardware or softwaremodule that adds a specific feature or service to a larger system. The idea is that the new component simply plugs in to the existing system. For example, there are number of plug-ins for the Netscape Navigatorbrowser that enable it to display different types of audio or video messages. Navigator plug-ins are based on MIME file types.
FreeGraphics.com A well-organized and searchable database of sites offering free web graphics, fonts, graphics software, tutorials, holiday graphics and more. Weekly downloads from a variety of well-known web artists and a free weekly newsletter.
Object linking and embedding with ActiveX The Webmonkey Geek Talk column, from August 15, 1996, describes the differences between plug-ins and helper apps and explains how Microsoft's Active X differs from Netscape's plug-in architecture.
Plugins.com Good resource for downloadable plug-ins for Netscape, Microsoft Internet Explorer and Photoshop.