180m playlists have been created on MySpace Music, and nearly 100m on Spotify

"On Saturday, MySpace CEO Owen Van Natta revealed that more than 180 million playlists have been created on MySpace Music. Well, Spotify is hot on its heels: yesterday, its CEO Daniel Ek revealed its own playlist stats, based on just six countries in Europe.
“Right now we’re almost close to 100 million playlists on our users, and 30% of those are albums,” he said. “People do actually listen to albums, and they’re storing them.”
Ek also said that Spotify doesn’t differentiate between its ad-supported and subscription business models – they’re wrapped up together, along with revenue from downloads."
Source: MusicAlly, 25th Jan 2010
Note - In the same article Ek revealed that Spotify has 250,000 paying subscribers