Right Click to Link to a YouTube Video at a Specific Time [Video]
You've always been able to hack a YouTube URL to link to a specific time, but now all it takes is a right click.
This is a very simple trick. Load up any YouTube video, seek to a specific time, pause the video, and right click. Then you'll be able to choose "Copy video URL at current time" and end up with a URL in your clipboard that'll start the video at the time you chose. Currently this only works on YouTube.com, but hopefully it'll roll out to embedded players on other sites in the future.
Thanks for the tip, HahSohrob!