Slacker today kicked off the start of its Radio Plus service. The feature aims to solve some of the problems of traditional Internet radio by letting users make an unlimited number of "requests" for the radio station and thus pick the songs they want rather than depend on Slacker's own team. It also lets users skip as many songs as they like and comes ad free versus the sponsored segments from some competitors.

As with the regular Slacker service, the Plus feature is available through the cross-platform web player and also through the company's G2 Personal Player, which can cache a large number of songs from each station over Wi-Fi to play them when offline. Owners of Logitech's Squeezebox Boom likewise have access to the free and paid versions. Slacker charges $4 per month for the service based on a $48 yearly plan.