WebSphere consultant Roland Barcia answers questions on building Web 2.0 applications with AJAX technologies on WebSphere. Topics range from popular data transport forms (such as REST, JSON-RPC, and SOAP), tooling (such as the Eclipse AJAX Toolkit and Rational tools), or AJAX toolkits (such as the Dojo Toolkit and DWR). He also discusses how AJAX technologies integrate with IBM's SOA platforms.