Want to send out a high-resolution clip over social networks or email, but don't want to sign up for a video uploading account? TinyPic, the video-focused cousin of Photobucket, offer free, no-sign-up HD-ish uploads. You get up to 200MB to play around with per upload, and the site can be a little ad-tastic at times—not to mention the large number of videos you don't want your mother to end up searching through. But the embeds are free, and look pretty great for no-commitment video sharing. Here's a clip uploaded by a CNET editor for testing:
TinyPic is free to use, no sign-up required, but an account lets you track and edit your videos, of course.