Abstract: A portable sensing device may be deployed for determining at least one stability metric of a vessel. The sensing device may include one or more motion sensors for sensing motion of the vessel, one or more freeboard sensors for determining a freeboard of the vessel, and a computing system for processing motion data from the one or more motion sensors and freeboard data from the one or more freeboard sensors to determine the at least one stability metric. The computing system may be programmed to transform the motion data from time domain motion data to frequency domain motion data and process the frequency domain motion data to determine the at least one stability metric of the vessel and the freeboard of the vessel.

Abstract: An advertising system provides content relevant advertisements to a client system for rendering in association with an instance of distributed content. The advertising system comprises a web server receiving content requests and redirect requests from the client system. Each content request includes: i) a unique identifier distinguishing the instance of distributed content from other instances of distributed content; ii) a template identifier identifying predetermined image map attributes of a predetermined image map defined within the distributed content; and ii) a search parameter. An advertisement content rendering object receives each content request and in response thereto, returns a rendering of each of a plurality of instances of advertising content in accordance the image map attributes associated with the template identifier. A redirect database maintains, in association with the unique identifier, redirect data and a financial parameter associated with each instance of advertising content.