This is nothing new. Any facebook user has likely seen tons of these on their feed and so it's only somewhat logical to assume that, for your friends, you might come up in a similar fashion.

In fact, isn't this completely related? http://mashable.com/2013/01/03/facebook-settlement-email/. I think what the OP is referring to is exactly what Facebook calls a "Sponsored Story".

I don't think that this is Facebook "impersonating me without my consent". Perhaps it is Facebook "using me to advertise products without my consent". Either way, if I like "Spotify" on Facebook and then some of their posts come up on my friends' feeds because "So and So likes Spotify" then I understand that it is a form of advertising and I'm not going to throw a fit over it.

It's wrong if Facebook says that I like something which I don't. However, that isn't what they're doing at all.