The internet continues to blur the boundaries of the personal and the public. It allows for increasing personalization of content and services (e.g. social media, simple search functions), as well as seamless integration of services (e.g. social media, games). At the same time many online spaces are of a semi-public nature, allowing us to share personal information with other users, and sometimes with unintended audiences. A key issue for CFI is the implications of personalization and semi-publicity of, for instance, social network sites for notions of online identity. How does the seamless integration of services and applications in these spaces contribute to processes of defining and performing the self?