This paper offers an HCI perspective on ubiquitous annotation with a focus on social object annotation. It suggests that user experience issues with staticdisplay visual markers and radio frequency tags are due to a lack of up-to-date information about the related object or service. To provide that information it proposes small situated displays that can encourage engagement and support interaction with dynamic user-generated content services. The paper describes a platform for research into small pervasive displays in the context of social object annotation and briefly discusses the relevance of the research for the wider field