• Stands for Asynchronous JavaScript And XML
• Used to get/send data 
• Asynchronous, so you can do other things while you wait for the data to come back.
• jQuery provides the easiest way to make ajax requests.

 var url = 'http://www.some-data.com/user/24';
 $.ajax({
     url : url,
     dataType : 'json',
     success : function(data) {
          console.log(data);
     },
     error : function(err) {
          console.log(err);
     }
 });

• GET - get something
• POST - send something
• PUT - update something
• DELETE - delete something

• Representational State Transfer
• Defined in 2000 to explain how the World Wide Web already worked
• Typically used when designing web service API's

• Restricts resource access between two sites with different domains.
• Pain in the butt when making ajax requests
• Usually you can work around this with JSONP

• Short for JSON with padding.
• Requests JSON data with a callback that is predefined in your page. 
• Callback immediately executes with the returned data.
• Using 'jsonp' in the dataType property for an ajax request will do this for you.

• Accessible as JSON via HTTP
• We'll use it as a JSON backend
• Sign up for Google account
• Go to Google Drive
• Create > Spreadsheet
• File > Publish to the Web...

• Starter jsBin
  
• Create a Spreadsheet in Google Docs
  
• Map properties to columns. Make the first column an index column with unique number.
  
• Create new custom objects from incoming data and display to screen (using last last class's exercise).