PDF files have the option to let you share and comment on documents in a wide range of applications. Adobe Acrobat Reader and other free PDF programs offer a subset of the capabilities of the paid ...

Whether you're editing someone else's work or leaving yourself notes for later, it's easy to add comments in Google Docs. Comments appear as small notes in the sidebar of a document online. However, ...

Commenting can play a major part in making an author’s blog post deeper, and more interesting to read. It’s like having a discussion in real life versus simply hearing someone speak–there are details, ...

Whether your company is involved in video production or you simply want to chime in on someone else's content, it's important to know how to properly post a comment on YouTube. Most videos posted to ...

You know and love Instagram for its ability to help you filter and post awesome photos. I'm no stranger to spending (wasting?) far too much time scrolling through and doling out likes to every ...

A new tool from fringe social network Gab aims to add a comments section to anything and everything on the internet. Dissenter is a browser extension that lets users make comments on anything from ...