Methods and apparatus, including computer program products, for augmentation of streaming media. The recommender initiates the recommendation process using her local device by generating a recommendation. A set of search results may be modified in accordance with the user’s historical activities. A first antenna port may be coupled to an inverted-F antenna resonating element at a first location and a second antenna port may be coupled to the inverted-F antenna resonating element at a second location. The linkage assembly includes a link which is movable in the direction of the link toward extension of the step to contact a stop of the frame that reacts against a gravitational load acting on the step. Desorption air is substantially completely sealed within the desorption zone.