Here's a one-question quiz to determine whether your e-business is a serious, viable enterprise: Q: Do you have video on your website? A: The only right answers are, "yes" or "we will soon." Not so long ago, videos were nice to have on a website.  They were a frill.  They were something fancy to attract a visitor, not an integral part of an e-business' plan for effective SEO and increased conversions.  Today, video is a necessity,