HubPress - A free, open source tool you can use to build a blog using GitHub Pages and AsciiDoc. HubPress is a web application that makes it easy for you to maintain a blog.
Github Profile Visualizer - Tool for visualizing GitHub profiles
GitHub Personal Website Generator - Generate a personal website based on GitHub contributions
Refined GitHub - Browser extension that makes GitHub cleaner & more powerful
Jekyll-post-via-web - Update your GitHub-hosted Jekyll blog from your browser
Blog Starter by prismic.io - Publish a blog with API-based CMS