In this paper, we describe a review of existing Web 2.0 applications and the current or potential usability of them during the lifecycle of digital art projects. More specifically, we outline the characteristics of the various digital art categories, and the features that need to be supported. Afterwards, we present a classification of Web 2.0 applications and we show how they can support the digital art projects in all categories and lifecycle steps, esp. regarding collaboration, as well as some future potentials.