1) It is a critical error to believe that stuffing the tags on your video with keywords is going to generate a lot of traffic and make it very popular. The fate of your video is decided by the value and quality of the content you provide you viewers. The keywords in your tags are similar to the salt and pepper you add to your food. For more exposure you simply have to add a few here and there. However, you can't just rely on keywords and expect your video to become popular if it has low quality content because things simply don't work that way.
2)Not focusing on the community and not leveraging it is a mistake. There are powerful communities on sites like YouTube that allow people to comment on videos, share and participate in conversation and subscribe to videos. You have to use this community to your own benefit. You need to show other users that you care about them so you need to get involved in the community.
3) One other common mistake is to block the ability to embed and share. How do you think your video will get around if you don't let other people share it? If you allow your audience to publish your video and distribute it, the number of opportunities you have will grow. Remember, your videos have the potential to go viral and get you lots of traffic so don't limit them in any way. In conclusion, video marketing can work for any business, regardless of the fact that your niche has a lot of video content or not. The internet has made it simpler for you to leverage this age old way of conveying information. You have to avoid making the errors this article has pointed out if you want your video marketing campaigns to succeed. You can avoid making a lot of small errors by doing your homework but don't expect to be able to avoid every error because you will still have to learn from your own experience.