Personalization of web content is provided, comprising: accessing web content, selecting components of the web content in accordance with a user model, and structuring the components of the web content in accordance with the user model. The personalization further comprises presenting the components of the web content in accordance with the user model, and providing a graphical user interface for adapting the user model, wherein the graphical user interface is provided together with the web content of a portlet of a web portal, such that each adaptation of the user model is updated in real-time in the currently presented web content in the portlet.