The advantage of selling a service, rather than a product, in the early days of your blog is that you already possess the service in the form of your own expertise. Webinars, speaking engagements or consulting to share your skills bring revenue in now. while you wait to build your product offering. If you already have quality products ready, start selling them right away on your site. It's never a good idea to spam people, but let them know these products and services are available.
