Wireframing & UI
A wireframe demonstrates the layout of your web pages. The arrangement of content with navigation, call's to action etc. Wireframes lack any design but helps you (and us!) to focus on how the the website should function and not necessarily how pretty it looks in the first instance.
This goes hand-in-hand with the 'content first' philosophy. We always prefer to work on our wireframes with real content wherever possible. You'll quickly get an idea of how the finished website is going to work, then it's just up to us to make it look good.