OK, so really there are 11 steps to creating your sales funnel, but 10 just sounded more “precise”! Lastly, your email system should tell you how successful your emails are. Use this information to tweak and improve them over time. You should also track your blog posts, Twitter followers and Twitter activity, Facebook ad success, etc. Hubspot is a great tool for this kind of thing.
In marketing automation, Ryan Deiss, co-founder of Digital Marketer, often describes the sales funnel as a multi-step, multi-modality process that moves prospective browsers into buyers. It's multi-stepped because lots must occur between the time that a prospect is aware enough to enter your funnel, to the time when they take action and successfully complete a purchase.