Analysis: What are the Web's Top Sources of Referral Traffic? If there's one thing we know about Web authors it's that they are constantly seeking new sources of traffic for their content.
It doesn't matter if you're a blogger, a marketing manager or a small business owner, there is simply no reason to invest time with content creation and Web design if no one is coming to read it. For this reason, it's important to figure out where to actually invest time for the greatest ROI. Content Discovery and Engagement Report, Q1 2011. 2011 Search Engine Ranking Factors.
Keyword Tools.