You can now go to EmbedPlus and put in a video url and it will allow you to put comments on it as well as start and end where ever you want in the video. This might be nice if you want your students to show they have watched a video they are using in a project or to enhance it with outside information they have found about the video. Above is the super PAC I posted about below, but with four additional comments. Here is a link to it and here is a video explaining how to use embedplus. I found out about how to do this from Notanotherhistoryteacher.