poofHQ is an online proofing tool that allows you to manage feedback and approval of design work.
proofHQ recently extended the functionality to allow proofing of audio visual files, which is a huge step forwards and makes it one of a kind in the market. This means that any agencies or freelancers creating short website movies or interactive ads can now get feedback online from their clients with comments displayed at the relevant time within the file.
I am currently on a one-year-client-work-sabbatical, otherwise I would give proofHQ a try. Watch the demo below: