If you use Dropbox to collaborate a workflow, you’ve probably been left scratching your head now and then. What is your colleague event talking about? Is this the right document for the project they were discussing in the meeting? Typically, that left you firing off emails or tracking them down via chat or stalking their cubicle. Now, you won’t have to be that person. Dropbox is opening up commenting within documents for all, which lets you discuss what’s going on with a particular document or project, all without ever leaving Dropbox.