Hunter TechLookup - Create lists of websites by technology for free
Twitter text Splitter - Twitter text Splitter is a chrome extension that helps you to publish multiple tweets of your writing or a paragraph on your newsfeed.
xZeitgeist - The most popular tweets categorized and ranked, every day
Twishort - Twishort is a best Twitter app for writing longer tweets. Tweet more than 140 characters
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!
TwitLonger - TwitLonger is the easy way to post more than 140 characters to Twitter