socialmedia Welcome to my series of blog posts on the ABC's of Social Media, a tool that you can use to make you more "hip" in the world of Facebook, Twitter, and LinkedIn (just to name a few).  Today's letter is "X".  There aren't many "X" words in relation to Social Media so I opted for a word that is part of the underlying plumbing needed to make blogs and other web 2.0 social applications usable.  Today I picked the infamous XMLHttpRequest.

"X" is for XMLHttpRequest

ajax_interaction XMLHttpRequest

Pronounced: Eks-em-el Eych-tee-tee-pee Ri-kwest

XMLHttpRequest, or XHR, is a XML DOM API that can be used by JavaScript and other web browser scripting languages to transfer XML and other data between a web server and a browser. 

XMLHttpRequest is an important part of Ajax development and is used to implement responsive and dynamic web applications.

The XMLHttpRequest concept was originally designed by Microsoft as a server-side API call for Outlook Web Access 2000 and was subsequently implemented in many major web browsers.