Marketing

BlueShift

https://docs.getblueshift.com/docs/overview-intergrations

http://yourstory.com/2016/01/blueshift-series_a-funding/

https://www.marketo.com/why-marketo/

FriendBuy

https://www.datanyze.com/market-share/social-media-marketing/friendbuy-vs-referralcandy/

Segment.com

https://www.quora.com/Who-are-the-competitors-of-Segment-com-How-do-they-compare

https://www.datanyze.com/market-share/marketing-automation/blueshift-vs-datacrush/

It seems referral candy has magneto plugin

http://www.moblized.com/apps/referral-candy/compare/friendbuy

https://www.magentocommerce.com/magento-connect/referralcandy.html

https://www.youtube.com/watch?v=ddJIleyNhFw