This post is a little bit old, but problem is still relevant.
The best way to collaborate with engineers, clients, architects etc. in terms of publishing and reviewing drawings is to set CDE - common data environment. Usually it's file storage with web access and additional tools like mark-up, comments, online file viewers (ie PDF, DWG, IFC), file versions.
The latest BIM Cloud has possibility to upload and download files directly to BIM cloud and access them via web-site. But currently there are no file viewers, built-in mark up tools or communication (like chat or commenting).
CDE can be built by IT solution providers - as technically it is not so complicated.