How to Promote your Brand using YouTube
Brand Your Content
YouTube includes a feature to allow you to brand all your video content with a logo. Be sure to use this feature consistently on all your channel output. YouTube users move rapidly about the site, surfing through the available content, barely registering when they have changed channel. A branded video at least lets them know when they have hit your content, and if they like what they see you have a chance to retain them and hopefully convert them into a subscriber.
Aim For Consistent Channel Output
Try to give your channel a cohesive feel by producing videos that have a similar length and familiar look. Aim to keep a fairly regular time interval between the content releases. Doing so will mean subscribers can have a good idea of what kind of material to expect from your channel, as well as when they can expect it.
Write a Killer Description
By default, only the first few rows of the description are visible. Therefore, this is the place to link to your other promotional material. The viewer will need to elect to click the description to be shown more, so aim to leave something intriguing on the line just above this cut-off point. Where possible, reference items in both sections of the description from within the video itself.
Create a Channel Trailer
It is definitely good practice to have a trailer video to introduce your new channel. Although it should be brief, try to ensure that it conveys the essential information about your brand, your products and what a subscriber may expect from your channel.
To really stand-out on YouTube takes real marketing skill. The pointers above should get you started. After that, the rest is down to you. Good luck!