Linkedin and Google seem to be the best avenues right now. Twitter, Pinterest, etc. do not seem like the right venue to market for us but I am open to suggestions.
The problems with digital cold-calling is the lack of engagement and the multiple steps. Do you want to engage solely for the purpose of building a list that you have segment and attempt to sell? Of course not. New products and services thrive in a direct environment. You can measure the interest, apply the feedback and address the concerns to improve performance. More importantly, you can close prospects immediately in a direct environment. Consider identifying conferences, trade groups and trade shows that are target-rich opportunities. If you are struggling with identifying your core customers. I can help with that.