Spotify continues its charge towards mass-market adoption, revealing that they now serve streaming tunes to over 6 million paying subscribers.
Those subscribers have now brought in over $500 million in revenue for the Stockholm-based company, while ad-funded revenue still keeps streaming in (ahem) from the free users of the service's 24 million overall active users.
Continuos updates to both the Spotify desktop and mobile platforms (including the recent release of an in-browser player) keep attracting new custom, while the services 2011 US launch, tied with a Facebook partnership, also likely boosted the numbers significantly.
However, Spotify face a potentially difficult year. Though they've been long-rumoured, it seems that this year will be the one where Google and Apple launch rival streaming services. With the weight of those giant companies behind any such project, Spotify will be grateful for the solid user base they now have to work with.