While community building has been around as long as our cave dwelling ancestors it's undergone a revival in recent years with the rise of social media. In a more connected world it's both easier--and much harder to build a strong community. People often ask me how I built a strong network--in Boulder within a few months from basically zero and how my Twitter following grew 1000% in less than a year. Let me start with one of the biggest tips.
In the Twitter world this looks like following hundreds of people in an attempt to get them to follow you. Once they do--poof! you unfollow them. This is usually done in an attempt to gain followers as well as boost your ratio between followers and following. This is bad, bad, bad. Don't do this. You may build a following in the short term but once people figure out your game you'll lose followers--and credibility. Don't be that guy.
In the professional world this often shows up as a one-way relationship where you receive or only focus on getting your needs met. You know these people. It's all about me, me, me. And when it's finally your turn it's as if a black hole swallowed them whole and they're off to their next "meeting." Don't do this. It doesn't engender trust, pisses people off and takes you farther away from your goal. And? When you encounter a professional dark alley like needing a job or new clients--people are much less likely to help you.
So you want to build a strong community?
Take time to understand how the "system" works
complete the cycle of giving and receiving.
P.S. Don't worry. You didn't miss 393 other tips on building community. Since Letterman has already perfected the Top 10 list I thought I'd be just myself and create something different. Which...is a community building tip for another day.