On the introducing article of DDP, I read that anything can be published, but I've read somewhere ( for example in this Stackoverflow comment [Publish arbitrary data and automatically update HTML](https://stackoverflow.com/questions/12148287/publish-arbitrary-data-and-automatically-update-html#comment16364053_12189475) ) that only Collections can be published.

So where is the truth? If we can publish other things than Collections, I would liek to see an example as I can't find one so far.