Good input, thank you guys
Daniel, good question RE my post count. Maybe this one doesn't count - or at least it didn't when I started posting it...
Very good points about permissions and contractual ability to share. I've never gone to the trouble of including it in a contract (I will from now on), but also never run into resistance. Not after the client has aired the campaign, anyway.
Bruce, the mix down "long trailer" is a great idea. My first thought when watching yours were that they were too long, but then I remembered that I wasn't watching a film trailer, but a Reader's Digest condensed version so I could judge your work without tracking down the film and spending 2 hours watching it. A very natural next step after folks have been wowed by your reel and are now doing more of a due diligence and style check. I love it. You've got a great, polished look, too. Well suited to the material. Cool Impossible Camera shot through the window on Me You He She.
I guess I'm leaning more towards posting my own clips, rather than sharing their links. Setting aside the issue of being able to tweak the cut or grade - By re-uploading, a video is linked to your Vimeo or YT page (keeping people watching your content, rather than moving on to someone else's). The one flipside I can see is that sometimes the context of a client is valuable. For example, I recently shot a TVC campaign for a state tourism board. By sharing the client's link, you can see the scope of the campaign (online magazine, videos, etc), which lends gravitas to the project. In that case, I'm (hopefully) communicating that I have been entrusted with bigger projects. A client potentially has more views and like and all that guff, but I'm not sure how pertinent that is to someone already watching it.