Youtube Marketing Question

[Noobkiller]

For my youtube profile, I started uploading Map Of Te Week videos which serves as a link to my blog. I want to start including a Top Video Of The Week videos, but I have this question...

1) I want to show short clips of the top video, but I want to know how long it should be
2) Most of the videos were from Youtube, should I link back to that person's video page, or my posts that has the videos?

Thank you!

[Bloggeries]

Not sure how long the clips should be; maybe start a poll in this thread that asks that? Also regarding a link back. I think it's good to do that for many reasons.

[Noobkiller]

Poll done.

Most of the videos in my top video of the week were taken from youtube, so do I link back to that person's profile?

[Bloggeries]

I voted 30 seconds. If it's super interesting I'd like it to be hours but you know what I'm saying I hope

Also I'd link back. Whenever you link to others genuinely it kinda gives you momentum for others to link to you. Call it link love karma. Also right thing to do.