In a word—yes. You have to participate in the Internet arena to compete in today's world, including Internet marketing. Regardless of whether you choose to hire an agency or take a more DIY approach, you need to maintain a website with basic contact information.

From SEO to Pay-Per-Click to Social Media, the marketing options are vast—and growing. However, not one method works for every company.

It isn't possible to determine the ideal ratio of the Internet to traditional marketing. However, if you're measuring the ROI of all of your channels with a tool like Google Analytics, then it should be easy to see which methods are most effective.