It's a simple framework for faster and beautiful responsive sites. Even this site is also built with Beauter.
BOL stands for
.base -object _layer. Its a design methodology to help you do designing in a human friendly way.
Hand made icon sets, built on 16x16 pixel plan. These are very simple icons build for sweet projects. Specially designed for retro designs.
This site. Here you might find some good articles to learn about technology and design.