It’s estimated that in under 2 years almost 90% of web traffic by volume will be video. If you have the skills, or can hire a good SEO specialist, it is possible to rank a sales video on Page 1 of Google with relative ease depending on how competitive your niche is. Put a visible call to action in the title which appears in the search engine results page, and link the YouTube video through to your web site and with luck you should have a nice flow of leads as long as your video is listed on Page 1.
As a last resort, you could try cold calling by phone. This is probably the most depressing and soul destroying activity on the planet. Even if you get past the usual questions such as ‘If you’re selling something – I’m not interested’ and ‘How did you get my number?’ you need a really slick and professional script and the ability to recognize and avoid lonely old ladies who just want to interact with someone, anyone, in fact.