Code Beautify JSON Validator - Code Beauty’s JSON Validator or JSON Lint is easy to use tool to copy, paste and validate JSON data.

IndiePage - All your startups, on a page

FreeFormatter - Freeformatter is a platform that contains free online tools for developers, including formatters (json, html, xml, sql, etc.), minifiers (css, javascript), compactors, validators, and much more.

LinkedIn - LinkedIn is a business-oriented social networking service, mainly used for professional networking.

browserling - Live interactive cross-browser testing from your browser.

TrustMRR - The database of verified startup revenues