First, a common language needs to be set up to ensure marketing knows when a lead should be moved from marketing’s control, and placed in the sales funnel. There are two terms, "marketing-qualified lead" (MQL) and "sales-qualified lead" (SQL) or “sales-accepted-lead,” which all sales funnels must embrace to keep both teams aligned. When marketing has a lead ready to talk to sales, the lead should be marked as an MQL, meaning marketing has gotten it to the point where they believe sales should take over. If sales agree the lead is sales-ready, they accept the lead and move it from MQL to SQL (or SAL), and the handoff is complete. If not, the lead goes back to marketing.


Of course, if you're going the paid ad route, you could also use Facebook and Google re-targeting to keep that awareness and interest level high. For example, if you've ever noticed after leaving a particular website, that you begin to see their ad everywhere, there's a particular reason for that. Especially if they've already entered your sales funnel, this is a very powerful way to get them to act.
Social proof is the psychological idea that people determine what’s correct by finding out what other people think is correct. Customer reviews are 12x more trusted than descriptions that come from manufacturers. Social media is a powerful tool for creating social proof. Let the stories and experiences of your happy customers create converting content for you.
One of the core concepts in the digital marketing industry is the sales funnel. While odd sounding at first, this single core concept can take a business from virtually non-existent and unknown to multi-million-dollar marketing machine with mass saturation, seemingly overnight. In fact, there are skilled practitioners who have built a career around implementing this single concept in business.  
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