Poet.so - Capture and share Twitter posts as beautiful images
Refined GitHub - Browser extension that makes GitHub cleaner & more powerful
Twitter Ads - Twitter offers targeted ad placement on their ad platform.
GitZip - Download or create a download link for a GitHub project folder/sub-folder or file.
Tweetlet - Tweetlet is a free tool that lets you create beautiful images from your tweets, text, and any other images in a snap.
GitHub Hovercard - GitHub Hovercard provides neat hovercards for GitHub.