2-Choose topics to create videos on which are bound to be popular or maybe you could be the first one to start on a new topic.
3-Create a email list and tell all of your contacts to check out your video ( Whether they are your friends and family, or business clients if you do it for business purposes)
4-Try to use content targeted keywords and put as many appropriate tags as you can.
5-Email your friends and family about your videos.
6-Share it with your friends on social networking sites like facebook, twitter etc.
7-Post it on digg, stumbleupon.
8-You could put it on your blog, or tell your friends to put it on theirs.
9-Make people aware of your video through online forums like this one where there
is A promote your video section
10-You could post it on sites where you refer other's and get free views.
11-Put in eye-catching thumbnails
12-Make the videos short(precise) and up-to the point so that more n more people watch it.
13-Get YouTube friends or do the sub4sub thing (Do it once in a while so that it's not spam)
14-Place in nice thumbnails ( meaning put in the most thrilling part of your video at the half so
that it's attracting to people.
15-Tell as many people as you can, spread the video as much as you can.