The results of the second annual Ajaxian.com survey have been announced. Not suprisingly, the most popular framework for building Ajax applications is prototype with 43% of the 865 participants saying they use it. Script.aculo.us, which is built on prototype, came in second at 33%. Dojo came in third with 19%. I was a bit surprised to see that 25% of the respondents use no framework at all (i.e., they use XMLHttpRequest directly).
As to the format of the data transfer, 11% are using JSON (JavaScript Object Notation) instead of XML.
As to server-side platform, a full 50% are using PHP. Java comes in second at 37%, .Net third at 16%.