Quick background on Collabo (www.letscollabo.com) for some context - we're a bootstrapped startup aimed at creating a safe environment for freelancers, solopren

Quick background on Collabo (www.letscollabo.com) for some context - we're a bootstrapped startup aimed at creating a safe environment for freelancers, solopreneurs, and work-from-homers to video chat about anything they want. No selling, just camaraderie. We're very much in the P/M fit stage and wanted to test our theories that we can build and sustain and engaged community of peers willing to share/learn/give/seek with each other. So, here's what we did to get our first 100: 1. When users sign up for our email drip campaign (which consists of drive-to's for our blog), they also receive an invite to a private Facebook Group. We manually approve every person in the Group, and use the Group to learn about our customers, connect them with each other, survey new ideas, and build a sense of community. The Group has been wildly key to our building process. We're seeing about 55-60% of our email sign-ups join the Group, with about 20% being active participants. 2. My co-founder and I put out an offer to all our customers/readers to meet us for a cup of coffee, on us. We're in Portland and NYC, so only for those folks. 3. Sent personal emails to our networks promoting Collabo and asking them for feedback. 4. I manually scraped the follower lists of our competitors and industry big dogs on Twitter and followed them, which yielded some really good results, mostly in terms of gaining targeted followers. 5. Lots of time spent offering advice and sharing stories/knowledge on communities like r/startups and r/freelance. 6. In the process of guest blogging on sites that serve our niche market.