I get interested in pretty much anything that involves people and digital. The things that recently came to mind are:
Dynamics of disruptive business models especially for two-sided markets where the individual adds value by developing their digitalpersona (e.g. Goodreads, Diggs, Pinterest, Linkedin etc).
Crowd-based visual feedback and summarization where individuals express their interests and opinions by through imagery
Use of digital logbooks & diaries to record knowledge and best practice of staff in an ethical manner.