There's a lot of experimentation with bookending online video with ads. Have to say I think this is a dubious proposition. Not because it's technically difficult, or there's a shortage of advertisers or of users who like to watch video on their computers.
The problem is in what we users expect from our computing experiences: instant gratification. Online video with ads either before or after the clip counfound this expectation in a number of ways.
When you click a button, you want whatever you expect to happen to happen, and you want it to happen immediately. It's why you and everyone you know continually upgrades to a faster processor, or network connection, more memory, hotter graphics card, WiFi connection, whatever. Media gratification at the speed of thought, please.
Add to this the fact that on the computer, we experience unexpected results as bugs. It's a learned aspect of user interface grammar, just as a close-up communicates heightened importance or emotion in film grammar.
When a video clip forces you to watch an ad before the clip runs, the two bad things described above happen simultaneously. The desired clip is delayed (as much as 30 seconds - an ice age in compute time) and you also experience something other than what you expected -- an insurance commercial instead of a political analysis, for example.
Simple. Run the ad at the end. But if the ad runs there, as in Revver videos, there's little reason to watch it.
So, bad at the front end, useless and easy to ignore at the tail end. When a new form of ad manages to simultaneously evoke feelings of crappy programming! lousy connection! and bug! you know it could be in trouble. Gonna have to step past the obvious and the easy, on this one.




