Landing pages are living canvases in the world of direct response marketing. We’re always testing, tweaking, refining and even full-scale redoing them to achieve the perfectly optimized and conversion experience.
Here are some of the absolutely best articles I have come across of the years with regards to building and optimizing great landing pages.
However, I would caution you that the data varies greatly depending on the industry. I also believe that most people do a significant amount of browsing and shopping at work, based upon some baseline data collected from some of my own clients.
Here’s an article by Oli Gardner who makes a very clear case for why optimizing your lead conversion process/funnel is more important than focusing solely on traffic generation.