At the moment we are cold-calling, which is working wonders, but its very slow and time consuming. Requires calling, getting to the right person, then maybe a couple calls, then bingo! Then an email in response. Looking at cost-effective options. How can we be more targeted. Email marketing is an option, but I don't want to just send a bulk of unsolicited emails (done it before, mail chimp etc..., need to add some form of value, understand our different segments). Trying to avoid to just send newsletters... what options could we try?
Your autoresponder should let you tag leads. Also, you can autosubscribe members to a new list while unsubscribing them from the first list.
What I'm getting at here is that you could benefit from segmenting your list. Survey them for interests and segment accordingly. Then you can build campaigns that address the specific interests of each segmented list.