“Slackwater is when the tide is changing from one to another,” the Southern Maryland fisherman Neal Robrecht explained in an oral history given to the Southern Maryland Documentation Project nearly 40 years ago. It’s that moment of calm before the tide reverses course. An apt metaphor to describe historical inflection points, those moments that change things in some important way. It is this change that is at the heart of both SlackWater: A Journal on Environmental and Cultural Change in Southern Maryland and its online companion, SlackWater Online.