[evv]

I was a big fan of Rdio until I realized they publish a list of your entire music collection publicly under your username. I found that out by googling myself one day, and I closed my Rdio account immediately thereafter.

[misener]

Rdio offers "Protected Accounts"

http://blog.rdio.com/us/2012/09/now-available-on-rdio-protec...

[mattl]

You can set it to private.