A portlet data synchronization system, method and apparatus. The system can include a portal server configured to distribute portal content to requesting clients over a computer communications network. The system further can include one or more portlets hosted within the portal content through the portal server. Finally, the system can include a synchronization aggregator configured to aggregate synchronization markup for individual ones of the portlets in a single synchronization envelope. The synchronization aggregator further can be have a configuration for distributing responses to the synchronization markup to respective ones of the portlets.