With our high-speed Internet service, we deliver a better experience by continually increasing the speed of our service and adding a wealth of new features. We added 1.9 million high-speed Internet subscribers in 2006, the highest level of annual high-speed Internet additions in our history, and ended the year with 11.5 million high-speed Internet customers, representing 25% penetration of homes in our markets. We believe we will keep growing not only by continuing to attract new customers, but also by capitalizing on the capabilities of our service to power innovation and develop new online services. We created Comcast Interactive Media to focus on those opportunities. In 2006, we launched several new digital media platforms, including Ziddio, TV Planner and Game Invasion, and in 2007 we plan to launch other new online services.
With the dramatic ramp-up of Comcast Digital Voice in 2006, we have built a fantastic new engine for continued growth. We added 1.5 million Comcast Digital Voice customers last year, more than five times the number added in 2005. By year's end, we were marketing this service to 32 million homes, or 70% of our footprint, yet we are only at 6% penetration. We intend to increase that dramatically in 2007. Our goal is to reach at least 20% penetration, or nine million customers, by 2009. Given the power of Triple Play, we are on pace to achieve that goal.
We are also excited about our latest initiative: expanding into commercial business services — providing phone, Internet and video services to small and medium-sized businesses (SMBs). In 2007, we are beginning to target an estimated five million SMBs in our markets. We estimate that those businesses generated $12 - $15 billion in revenue for other providers in 2006, and our goal is to capture 20% or more of this market over the next five years. Buoyed by our success in the high-speed Internet and residential digital voice markets, and riding on much of the same network and infrastructure, we enter this new field with great confidence.
Our programming division continues to be a major value creator for the company and helps us to partner and work with new platforms to help differentiate and grow our cable business. In 2006, we acquired the remaining interest in E! Entertainment Television and now own 100% of it. We brought in new on-air talent, like Ryan Seacrest, and invested in programming that increased revenues and ratings at E!. We made similar investments at The Golf Channel and VERSUS, drawing higher distribution and ratings as the result of our expanded relationships with the PGA TOUR and the National Hockey League.
Investing in a Future of Opportunity
Consumers want the best services at a great price. They want things to be simple and convenient. They want to feel in control. The next great frontier for Comcast is to integrate our products in ways never before imaginable — like providing a single access point for customers to manage all their communications, or to plan and schedule their TV experience no matter where they are.