Web 2.0 refers to a new generation of web applications designed to support collaboration and the sharing of user-generated content. These applications are increasingly being used, not just to share personal information, but also to manage it. For example, a user might use Facebook to manage their photos and personal contacts, a networking site such as LinkedIn to manage professional contacts and various project Wiki sites to manage and share information about publications and presentations. As a result, personal data and its management become fragmented, not only across desktop applications, but also between desktop applications and various Web 2.0 applications. We look at personal information management (PIM) issues in the realm of Web 2.0, showing how the respective communities might profit from each other.