Stackshare - StackShare is a comprehensive website that gives its users the chance to organize and share their technology stack with the rest of the community.
Refined Twitter - A browser extension that improves the Twitter experience
Techmap.io - Techmap is a workplace search engine to find companies using technologies (e.g., Rails, PHP, Java, etc.) that are used internally. Finally, a "Google for Workplaces" that helps people find a place to work with technologies they love!
Typefully - Write & publish great tweets, without distractions
xZeitgeist - The most popular tweets categorized and ranked, every day
Tweet Tray - Tweet quickly from your desktop without any distractions.