Many communities suffer from "timenesia": a lack of awareness-of and interest-in their own past, present and future. They don't showcase their rich past, aren't aware of their neighbors different takes on their present, nor their hopes for their shared future. Timenesia.org's goal is to overcome this problem by enabling communities to awareness, engagement and excitement via hyper-local guided tours featuring residents' voices, pictures, and text about the past, present and future. We are building on a rich tradition of participatory research about how to engage the general public in community revival and visioning.