This is the link to the real definition of Web 2.0 tools
Submitted by: Renita L. Russell
http://oreilly.com/web2/archive/what-is-web-20.html

API: Application Programming Interface

http://en.wikipedia.org/wiki/Application_programming_interface

http://www.computerworld.com/s/article/43487/Application_Programming_Interface

ADL: Advanced Distributed Learning and SCORM: Sharable Content Object Reference Model

http://www.adlnet.gov/Pages/Default.aspx

http://en.wikipedia.org/wiki/Sharable_Content_Object_Reference_Model