The following video is part of our "Motley Fool Conversations" series, in which analyst John Reeves and advisor David Meier discuss topics across the investing world.

Pandora put up some impressive numbers recently, and it's hard to ignore that progress. Listening hours continue to grow, as more people enjoy the service. And if you want to take advertising dollars from the likes of CBS, acquiring and growing your audience is the right first step. The progress made on the mobile side is even better. That's where the proverbial puck is going, and Pandora, LinkedIn, and others are making great strides there. Again, it's hard to ignore Pandora's progress. But investors still have to watch its growing costs. They are the key for shareholders. And even with competition from Spotify and some of the great stuff on Google's Nexus 7, David thinks Pandora might be worth a second look.

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