Landing pages are composed of a group of definable elements. The building blocks presented below can be used as a guide when defining and creating a perfect landing page of your own!
This Infographic by KISSmetrics dives into the intricacies of the ultimate web design and the perfect landing page.
The Blueprint For A Perfectly Testable Landing Page is a great example of sources that you can derive information and knowledge from about what other people have found works.
Sometimes these guides can start you off in the right direction and from there you can go ahead and refine it for your audience and visitors.
And if you are currently designing or re-designing you website or blog this template may be of use: