GitHub - echo3/echo3: Echo is a platform for building web-based applications that approach the capabilities of rich clients. The applications are developed using a component-oriented and event-driven API, eliminating the need to
![Echo Web Framework | Developer information for creating AJAX web applications using the Echo2 and Echo3 frameworks Echo Web Framework | Developer information for creating AJAX web applications using the Echo2 and Echo3 frameworks](http://echo.nextapp.com/site/files/Echo3Shot.png)
Echo Web Framework | Developer information for creating AJAX web applications using the Echo2 and Echo3 frameworks
![Amazon.com: Echo 3 Green Resource and Assessment File (2009): 9780435394813: Jones, Marian, Wardle, Michael Amazon.com: Echo 3 Green Resource and Assessment File (2009): 9780435394813: Jones, Marian, Wardle, Michael](https://m.media-amazon.com/images/I/51l8Fi5wOML._AC_UF350,350_QL50_.jpg)