Short for InterShop Markup Language. ISML is a set of scripting tags to generate dynamic web pages. ISML tags are extensions of any tag-based language that conforms to SGML standards. On servers which support this server-side scripting language, such as all NorthSky (CommunityArchitect) cohosts, you can use these tags to automatically include the contents of another file, the current date and time, or a visitor counter on a web page. For more info (and details of all tags and expressions) see this PDF file by Intershop.