Wappalyzer - Wappalyzer is a technology profilers and leads data provider. Create lists of websites and contacts that use certain technologies.
TwitLonger - TwitLonger is the easy way to post more than 140 characters to Twitter
WhatRuns - Extension that helps you identify technologies used on any website at the click of a button.
Privatter - Privatter is the easy way to share long texts and pictures set limit on your followers. You can post them by Sign in with Twitter account to this site.
BuiltWith - Find out the technology behind websites
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.