Collaborative editing in Google Docs. All users connected to the document can edit its text directly, and can also post comments in the right-hand sidebar.
Collaborative editing is the process of multiple people editing the same document simultaneously. This technique may engage expertise from different disciplines, and potentially improve the quality of documents and increase deals.[1]
^Tomlinson, Bill; et al. (2012). Massively distributed authorship of academic papers. 2012 ACM annual conference on Human Factors in Computing Systems Extended Abstracts. Austin, Texas, USA. pp. 11–20. doi:10.1145/2212776.2212779. hdl:2117/171295.