[clobber]

Let's get one thing straight: these are not products, they're services. Nobody is producing anything here.

[jmduke]

Do you not consider a releasable piece of software a 'product'?

[mmahemoff]

I would tend to think of the whole thing as a service (e.g. "Twitter" - all of its apps, data, brand, users, infrastructure), versus individual apps (e.g. "TweetDeck") being "products".