This extension adds CrunchBase, AngelList, Alexa & co. links to posts on producthunt.com
I'm not yet ready to release the source code of the extension. Will most likely do so in the mid-future. I can assure you the extension does not collect any data about you, it does not track you and links you click on.
Install Chrome Extension: https://chrome.google.com/webstore/detail/fdhkbjjdfdnpoijjcbcggagehineleah
Submit you ideas and bugs: https://github.com/websirnik/PH-Invest-Edition/issues
Ping me on Twitter: https://twitter.com/nikitakorotaev