Online radio listenership has grown over 515 percent since January 2001, according to MeasureCast. Arbitron reports that 35 percent of all Americans 12 and older have used streaming media. Why?

The recent extreme growth in webcasting services has led to more service offerings and increased competition, which is great news for anyone looking for a flexible range of pricing and features.

Some video switchers have built-in, full-fledged audio mixing consoles with multiple audio inputs. Others allow a pair of audio inputs from a soundboard or single source, and some don’t even pass on ...