My best hidden SEO secret would be adding the websites phone number into the meta keywords for the homepage only. If you have a missed call from someone, most people just Google the number however if you have the number in your meta description/keywords it will display your homepage as opposed to your contact page. Once they are on the homepage they will more than likely check the contact us page then hopefully browse the website. I sometimes use an image for the contact number on the contact us page so it isnt picked up by the crawler. Its a pretty small secret but its one of mine

I can't help but agree with Lisa, YouTube video optimisation also follows backlinks. The more websites that display your video the more hits you’re going to get and YouTube will class your video as being more relevant. The king of YouTube optimisation is making useful, informative and valuable videos and the traffic will come. I occasionally use videos for a small injection of traffic in times of a promotion.