Listening to music can be one of those personal activities that peacefully coexists in a professional environment. But the rise of online music can cause problems on the back-end, even when the music itself isn't bothering anyone. Bourque notes that audio requires only a small fraction of the bandwidth necessary to deliver video, but nonetheless it can add up -- especially when streaming services are left on continuously. "Services like Grooveshark and iTunes Match are now allowing subscribers to keep their entire music library in the cloud, and [they] require streaming back from the cloud in many instances," said Bourque. "Internet radio use is on the rise as well."