Facing the myriad of web resources that are now available, the challenge we focus on is how to help users discover and select the most appropriate one for their particular needs. End-users feedback has been identified as a major source of inspiration in this process. In this paper, we draw an overview of existing solutions supporting it, and propose a prototype for completing these means while focusing on personal contexts of use of resources. Our ontology-based approach aims at letting end-users share the experience they have developed during their activities. This experience is crystallized in web resources aggregates that contextualize their task performance. We propose to describe and share these contexts through online personal ontologies that can be browsed thus providing entry points into the users’ universe.