Interestingly, Dropbox has a second product in this space called "Screen Capture": https://www.dropbox.com/features/content-collaboration/scree...

There are others as well: Loom, GetCloudApp, Gyazo and a few more.

I have actually built one myself [1] ScreenBud.com, which is not ready for Show HN yet, but we already have >15000 users of our Chrome extension [2].

I am quite curious to hear from others about what you are looking for in these products. As for me, my main use cases are:

  1. In-browser screenshots with visual annotations (parts of emails, docs, or anything else that's not easy to share or pinpoint with a URL)

  2. Design feedback

[1] I hope the selfish plug is OK! [2] https://chrome.google.com/webstore/detail/screenbud-%C2%B7-c... -- (it works on Firefox as well, but the publishing process for Firefox is a bit more involved)