SalesOptimize - Selling to online retailers? Revolutionary sales lead generation search engine driven by deep web analytics
Box - Box offers secure content management and collaboration for individuals, teams and businesses, enabling secure file sharing and access to your files online.
Rescan.io - Find the technology stack behind any website. Get the lists of websites using any technology.
Dropbox - Online Sync and File Sharing
Elucify - A completely free software tool that uses crowdsourced data to find business email addresses
Google Drive - Access and sync your files anywhere