Inbound Marketers Struggle to Calculate, Prove ROI

41% of marketers say that inbound marketing demonstrates ROI for their company, compared to 9% who believe it doesn’t, according to HubSpot’s newly-released “State of Inbound Marketing 2013” report. But another one-third cannot (or do not) calculate ROI. A difficulty in tracking reliable metrics may be why despite healthy inbound implementation rates and projected spending increases, a leading 25% of inbound marketers say that proving ROI is their top challenge. (more…)