When you want to make a compelling and overall great interface, remember this quote:
“Perfection is achieved not when there is nothing more to add, but when there is nothing left to take away.”
– Antoine de Saint-Exupery
Having less is not less valuable. It's ok to have blank areas. When others ask about the blank spaces, it's a seperator and content focus technique. At first you'll fail to have nothing, but that's not the goal. Keep working at it and take away pieces and components until it's just right. Look at your competitors and see how they don't know what they want to tell you so they add everything they can think of. Clear focused design intent.
I saw the Thoughtbot Hound site today. The site is clean, but has the timeline that shows how to get started without adding distraction. The use of purple (#a873d1) is not my first choice, but it works so well here. This is the site as it is on April 10th, 2014 reference design houndci.com, it may have changed.
Relaunching this website to focus on Design. Design is the creation of a plan or convention for the construction of an object or a system (as in architectural blueprints, engineering drawings, business processes, circuit diagrams and sewing patterns). Design has different connotations in different fields (see design disciplines below). In some cases the direct construction of an object (as in pottery, engineering, management, cowboy coding and graphic design) is also considered to be design. --http://en.wikipedia.org/wiki/Design