Summary: All organizations should be using YouTube for marketing. It enables organizations to communicate their message the powerful medium of video and, through the use of social networking tools, organizations can exponentially increase their audience. Using YouTube for marketing will also improve organic search engine rankings since search engines, and particularly Google, the owner of YouTube, like video content.
I am going to focus on YouTube for marketing since it is the biggest video site. Many of the same principles will apply at the other sites.
You will probably have noticed that many of the tips for using YouTube for marketing relate to becoming involved with others. This is a principle that applies right across all internet marketing activities. It is connections that drive success.
There are many software tools that will make outrageous claims about how they can automate YouTube marketing. The problem is most of these tools will eventually lead you to being banned. Since Google took over YouTube, anti-spamming measures and penalties have increased dramatically. Many tools will fail after a couple of weeks as YouTube changes login procedures or finds new ways to identify automated actions. If you are going to use video marketing tools, ask yourself - what would make my video look suspicious? A sudden burst of viewings within a short space of time, possibly from the same IP address (or one recognised as being used by automated software) will alert YouTube. And once that happens you will be on the radar and may even be penalised when the traffic is legitimate.
A very useful site that I can recommend is Tubemogul. Not only will Tubemogul submit your videos for you, it will also allow you to track your videos. And it's free! To use Tubemogul, you will need to create accounts at each of the video sites.