YouTube can be useful from an SEO perspective as Google likely uses video views as a ranking factor for pages, because it is a social indicator.
Another benefit of YouTube is that it can help with SERP (search engine result page) result saturation, because Google will frequently pull videos and put them in the organic search, therefor giving you another outlet for potential customers to see your brand.
Well Youtube has a program called Tubetoolbox and it is the best program out of all programs I've used. It can help you with getting subscribers, friends, video views you name it and the best thing is its 9.99 a month.
Here's the link www.tubetoolbox.com