Citizen Science Participation Statistics: Volunteers, Observations, and Global Research
Explore participation and output statistics from iNaturalist, Zooniverse, City Nature Challenge, RSPB, NASA GLOBE, and GBIF.
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Statistics
Statistics
Source-based context and useful figures about collaboration & ideas, with dates and limitations explained.
Crowdsourced Mapping Participation Statistics: Global, Regional, and Disaster Response Data
A source-linked overview of crowdsourced mapping participation, from OpenStreetMap's global contributor base to regional hubs, mapathons, and disaster responses.
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Crowdsourcing Statistics: Participation, Public Projects, and Crowdwork
Explore measured statistics on crowdsourcing across federal projects, citizen science, archival work, and digital platform labor.
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Data Collection Statistics: Public Trust, Survey Response and Data Governance
Data collection statistics reveal a persistent gap between the value people see in data and their concerns about privacy, security and accountability.
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Data Labeling Statistics: Market Scale, Workforce, and AI Data Quality
A source-labeled overview of data labeling statistics, from contributor networks and annotation formats to AI data quality and economic impact.
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Freelancing Statistics: U.S. Workforce, Income, and Independent Work Trends
A data-led overview of U.S. freelancing, from contractor rates and earnings to independent-work participation, skills, and business adoption.
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Gig Economy Statistics: Participation, Work Patterns, and Business Activity
Federal Reserve and Census statistics show who participates in gig work, how much time it takes, and where related businesses operate.
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Information Crowdsourcing Statistics: Participation, Scale, and Output
A data-focused look at how people create, classify, map, and improve information through large-scale online collaboration.
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Kaggle Statistics: Users, Competitions, Datasets, and Models
A data-focused overview of Kaggle's scale, competition formats, collaboration features, and documented platform history.
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Knowledge Sharing Statistics: Training, Productivity, and Collaboration
These knowledge sharing statistics show where information gets lost, which tool capabilities matter most, and how organizations view future investment.
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Microtasking Statistics: Workers, Earnings, Time, and Global Scale
Microtasking spans a global network of workers and platforms, with major differences in time, income, geography, gender, and work formality.
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Online Knowledge Community Contributions Statistics
A data-led look at how people contribute to, discover, verify, and learn through online knowledge communities.
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Online Survey Statistics: Response Rates, Completion and Data Quality
A source-based collection of online survey statistics on participation, question completion, devices, survey modes and fieldwork costs.
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Open Data Statistics: Policy, Portals, Impact, and Quality in Four European Countries
A country-by-country view of open data policy, portal performance, impact, quality, and maturity scores reported for 2023.
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Open Innovation Challenge Participation Statistics
Open innovation challenge participation ranges from specialist research calls to global NASA programs, with clear differences in scale, geography, and engagement.
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Public Participation Statistics: North Carolina Voter Turnout Over Time
A data-focused look at North Carolina voter participation from 1988 through 2024, including election type, voting method, party, and age.
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Quora Statistics: Audience, Reach, Advertising, and App Data
Explore Quora statistics on monthly visitors, topics, audience characteristics, advertising options, user guidance, and app marketplace data.
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Reddit Statistics: Users, Revenue, Communities, and Moderation Data
Explore Reddit's 2024 audience, revenue, community, messaging, moderation, and advertising statistics by quarter and reporting period.
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Survey Response Statistics: ACS Rates and Nonresponse Patterns
U.S. ACS response statistics from 2020 through 2024 show how participation and nonresponse reasons changed across housing units and group quarters.
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User Generated Content Statistics: Consumer Trust, Commerce, and Creator Trends
User generated content influences brand discovery, purchase decisions, travel, fashion, online shopping, community activity, and creator income.
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Wikipedia Statistics: Articles, Readers, Editors, and Wikimedia Data
A source-labeled overview of Wikipedia's scale, participation, usage, media activity, and Wikimedia Foundation financial figures.
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Amazon Mechanical Turk Statistics: Workforce, Earnings, and Task Data
A fact-based overview of Amazon Mechanical Turk workforce size, worker activity, earnings, geography, task limits, and requester metrics.
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Citizen Science Statistics: Participation, Observations, and Research Impact
A data-focused overview of citizen science participation, platform activity, geographic reach, and scientific use.
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Collaborative Research Statistics: International Coauthor Shares in U.S. Articles
See how the measured shares of selected countries in U.S. international articles with a Chinese coauthor changed across five benchmark years.
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Collective Intelligence Statistics: Participation, Scale, and Research Findings
Statistics on how people build knowledge together, from online communities and citizen science to research on group intelligence.
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Crowdsourced Content Statistics: Wikipedia, GitHub, Reddit and YouTube
Explore quantified crowdsourced content statistics from Wikipedia, GitHub, Reddit, Stack Overflow and YouTube, with dates and measurement scopes made explicit.
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Crowdsourced Data Statistics: Scale, Participation, and Public Value
Explore measured participation, contributions, coverage, and public uses across major crowdsourced data projects.
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Crowdsourced Innovation Statistics: Participation, Reach, and Results
NASA and federal program figures show how crowdsourced innovation scales participation, challenges, citizen science, and public-sector problem solving.
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Crowdsourced Journalism Statistics: Kickstarter Funding, Formats, and Reach
Pew Research Center data on Kickstarter journalism projects reveals how crowdsourced reporting was funded, organized, and geographically planned through 2015.
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Crowdsourced Research Statistics: Participation, Projects, and Evidence
A data-led overview of participation, project reach, demographics, review evidence, and publication patterns in crowdsourced research.
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