Online version of InDesign?

I have been looking for the online version of InDesign some months ago, but actually there are no official versions. In the case you simply want to create a digital publication, you can try out www.joomag.com which features an online editor similar to InDesign, but of course it lacks many features of InDesign.

If you mean like a public website where you can go and use ID without actually buying a license, there shouldn't be.