Youtube is a site where you can see almost all the videos and this the best site to watch video.For seeing video I always come to this site to watch any videos.You tube has many secrets which will comfort your life.
Some of the secrets are:
1) While playing video you can us this keys for controlling videos
k: play/pause
j: rewind for 10 seconds
l: forward for 10 seconds
2) If you press " ss " before url you can download videos
and so on.
Best thing is about youtube that it is a site which will give you space where you can earn.
If you have to earn on youtube then you have to make channel on youtbe and through monetization. You have to tie up with add sense.
I am earning from youtube from several months.
So I you want to make money by making videos, then this is the write place for you.