[Mac McGinnis] "Would you use the same for uploading to Facebook and other social media sites?"
Yes, the Internet is the Internet. It doesn't matter what site is hosting the video.
[Mac McGinnis] "Or how bout for a 1 minute or so video you'd like to email someone?"
You really shouldn't "email" a video. Most email accounts are restricted to 10MB and you'd be hard pressed to get a video that small with any quality, and even if you did, your friend would be quite mad if you max out their inbox and other emails start being rejected. You should always email a "link" to a video. Get a Dropbox account, place your video in Dropbox and mail a private (or public) link to whoever you want.
If you don't have a Dropbox account and want to join (it's free) you and I can get an additional 500MB of space by using this referral link:
http://db.tt/jaJ4T1T1
I use Dropbox almost every day to share folders on my PC and MacBook Pro, iPad, and iPhone with colleagues I am collaborating with. It's an awesome free sharing service.
~jr
http://www.johnrofrano.com
http://www.vasst.com 
