video responses

I have been checking my referral stats for my youtube vids and have noticed that some referrals come from www.facebook.com and other referrals come from www.facebook Can anybody tell me the difference between the two of these? Thanks in advance, blackma :) P.S. Happy Mother's day to...

OK, part of my promo strategy involves posting video responses, but I am TIRED of having to use trial and error in order to find vids that ALLOW video responses without owner approval - SO, is there any way (API query or regular search or something in settings per vid) that I can do a...