IFrame

HTML element for including 1 page within another

• super-coarse Transclusion

http://en.wikipedia.org/wiki/Iframe#Frames

http://en.wikipedia.org/wiki/Framing_(World_Wide_Web)

Some concerns about this long-standing frameset feature of the HTML 3.0 and HTML 4.0 standards have led to its removal from the HTML 5.0 standard (except for iframes). Replacements include XFrames (still a W3C "working draft" as of 2010), or the use of CSS (Cascading Style Sheets), Server Side Include-s (SSI), and Scripting Language-s such as PHP.

IFrame-s are key to FaceBook app development.

vs Third Party Java Script?

• http://stackoverflow.com/questions/535676/widget-iframe-versus-javascript
• http://prettyprint.me/prettyprint.me/2009/05/30/widgets-iframe-vs-inline/