Explore
Understand what this is, and why it matters.
Community is the foundation of C2C Central: the network of people, profiles, and relationships that every pillar plugs into. This is the one part of the platform that's actually live today.
Key ideas
A community is a group of people connected by shared interests, identity, location, purpose, activities, or relationships — not a synonym for "networking tool."
Sociologist Mark Granovetter's classic "strength of weak ties" finding: acquaintances — not just close friends — are frequently the ones who pass along new opportunities, because they connect you to circles you're not already in.
Robert Cialdini's research on reciprocity found people are far more likely to help you after you've already helped them — one reason the members who get the most out of this community are usually the ones who contributed something first.
Repeated interaction builds relationships; relationships build trust; trust enables knowledge exchange and collaboration — and opportunities follow from that, not from collecting contacts directly.
Community types
A group of people connected by shared interests, identity, location, purpose, activities, or relationships.
College clubs, study groups, alumni networks.
- College clubs
- Study groups
- Alumni
Employees, professionals, industry groups.
- Employees
- Professionals
- Industry
Entrepreneurs, MSMEs, founder networks.
- Entrepreneurs
- MSMEs
- Founders
Volunteers, NGOs, local and interest groups.
- Volunteers / NGOs
- Local groups
- Interest groups
These are examples of community structures, not endorsements of any specific platform or group.
Communities increasingly coordinate through AI-assisted tools — summarizing discussions, drafting event copy, or triaging requests. The skill worth building isn't a platform, it's judgment about when AI output needs a human check before it goes out to a group.
Free knowledge
Curated resources, prioritizing official and educational sources over random search results.
🟢 Start here
Where developer and open-source communities actually organize and collaborate on code.
Why this: The default home for a developer/open-source community specifically — not a general chat tool.
Tool · 🟡 Industry / Secondary →Local, Google-supported chapters for technology and developer communities worldwide.
Tool · 🟡 Industry / Secondary →Real-time chat and voice, organized into channels — a common home for discussion communities.
Tool · 🟡 Industry / Secondary →🔵 Build
Structured, channel-based messaging — common for professional or project-based communities.
Tool · 🟡 Industry / Secondary →Discover and organize local, in-person or online interest and professional groups.
Tool · 🟡 Industry / Secondary →Professional networking and discussion, tied to real identities and career context.
Tool · ⚪ Industry / Secondary — needs review →🟣 Go deeper
Topic-based public discussion at scale — useful for reach, less so for close-knit coordination.
Tool · 🟡 Industry / Secondary →Forums and resources for users and professionals working around Atlassian's products.
Tool · 🟡 Industry / Secondary →Experience
Try it — interactively, not just as reading.
The journey
Math — only where it matters
Shown only because a real formula or accounting identity applies — never an invented score.
Expected active participants
A worked example showing how reach and a typical response rate turn into how many people actually show up and stay active.
Expected active participants = Reach × Response rate
Evidence & methodology
- Classification
- Illustrative example, using user input-level evidence.
- Assumptions
- Worked example: reaching 100 people at a typical ~10-20% early response rate realistically yields 10-20 initially active participants, not 100.
- Important
- The response rate isn't a universal constant — it depends heavily on how directly relevant the community is to the people reached.
Community Builder
Answer four quick questions to get a practical starting structure for a community you want to build.
Reality check
What does the evidence actually tell us — and what doesn't it?
Research consistently finds associations between social networks, employment and collaboration opportunities, and access to information — though the size of the effect varies substantially by context.
How much a specific connection will matter for a specific person's specific goal — that depends on factors this page can't observe (timing, fit, effort).
Message one person in the directory this week with a specific, small ask, and see what happens.
Execute
Do something real with this — not just "learn more."
Build a community
Saved in this browser only — it isn't sent anywhere, and won't follow you to a different device.
Want help launching or scaling your own community platform? C2C Central was built from the ground up by this same team.
Sources & methodology
Community groups
Local groups for this offering — starting at the town, rolling up to state and national networks.
See all C2C Community groups →
Live on the platform
Upcoming & recent events
No events yet — be the first to host one once you sign up.
Latest from the community
No posts yet — share the first piece of knowledge with the community.