Crowdsourcing
Sourcing services or funds from a group
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We include updates on Reddit, Social media, Millennium Prize Problems, Quora, Waze, PageRank, Community Notes, ReCAPTCHA, Ask.com, Stack Overflow, Kaggle, Bellingcat, Wisdom of the crowd, Open collaboration, Amazon Mechanical Turk, Memrise ... and more.
| March 7 2025 | The Verge reported that Reddit's automatic moderation tool was incorrectly flagging the word 'Luigi' as 'potentially violent', including in unrelated contexts, causing issues for moderators across subreddits. |
| 2025 | Brainly announced the launch of its new AI Learning Companion, promising to provide a human-like tutoring experience with AI technology. |
| March 5 2025 | Reddit announced they will be issuing warnings to users who upvote 'violent content' and may consider taking additional actions against such users. |
| February 2025 |
Hyperloop pod competition
First hyperloop pod competition to be hosted in India, taking place at IIT Madras, marking a departure from previous competitions held in the US and Europe.
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| January 2025 | Reddit temporarily banned r/WhitePeopleTwitter subreddit for 'policy violations' following discussions about content moderation. |
| January 2025 | Over 100 Reddit communities banned users from posting links from X social media site in response to Elon Musk's controversial arm gesture, which critics claimed resembled a Nazi salute. |
| 2024 |
Citizen science
COVID-19 Citizen Science project's Eureka platform reached over 100,000 participants.
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| 2024 |
Citizen science
Folding@home expanded its project to look at other health issues including Alzheimer's and cancer.
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| 2024 |
Citizen science
Over 600,000 people participate in the Big Garden Birdwatch weekend in the UK, counting almost 10 million birds.
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| 2024 |
Citizen science
OpenPandemics – COVID-19 project continued its work, now focusing on targeting the DNA polymerase of the cytomegalovirus.
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| 2024 | Brainly announced the launch of Test Prep, an AI-powered study planner for students across all academic subjects. |
| 2024 | Brainly was ranked #1 in the Generative AI Tool education category by FlexOS. |
| 2024 | Andreessen Horowitz ranked Brainly #6 in the Top 50 Generative AI Mobile Apps by monthly active users. |
| 2024 | Jacob Stern from The Atlantic published a critical review of Quora, highlighting issues with content quality, advertising, and platform engagement. |
| December 2024 |
Open Food Facts
United Nations recognized Open Food Facts as one of the 180 digital public goods, highlighting its global significance in providing comprehensive food product information.
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| December 2024 | Reddit announces Reddit Answers, an AI search tool that summarizes conversations in response to user questions. |
| October 2024 |
Citizen science
Earthwatch Europe conducted a second water quality 'blitz' with 4,531 volunteers testing freshwater sites, including chemical pollutant testing for antibiotics, agricultural chemicals, and pesticides.
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| October 2024 | Quora discontinues Space Subscriptions and Ads Revenue Sharing Programs |
| September 2024 |
Hyperloop pod competition
Completion of a 410-meter hyperloop vacuum tube at the Discovery Campus of Thaiyur, IIT Madras, positioning it among the longest hyperloop tunnels in the world.
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| September 2024 | The Federal Trade Commission released a comprehensive report examining data collection practices of 9 companies, including Reddit, highlighting potential risks to user privacy and personal safety through data collection methods affecting individuals' vulnerability to identity theft, stalking, discrimination, and potential emotional and mental health impacts. |
| July 2024 | Memrise announced in a blog post that community courses will be removed from their new app experience and moved to a separate platform. |
| May 24 2024 | Reddit introduced dedicated platform features for hosting AMAs, enabling hosts to schedule and promote events, and allowing participants to RSVP. |
| May 16 2024 | Reddit reaches a deal with OpenAI to provide API access for AI model training, while receiving AI tools for moderators and users. |
| May 15 2024 | Reddit removed the dedicated login flow from the old.reddit.com domain, though site admins stated they have no plans to remove the old domain entirely. |
| April 2024 | Quora introduces creator monetization via price per message on Poe |
| April 2024 | Quora enables multi-bot chat functionality on Poe |
| March 21 2024 | Reddit debuted on the stock market with the ticker symbol RDDT, with a market cap of $10 billion. |
| March 20 2024 | Reddit goes public on the New York Stock Exchange, opening at $34 per share with a $6.4 billion valuation and closing at $50.44, reaching a market cap of $9.5 billion. |
| February 2024 |
Citizen science
The CitSci Africa Association held its International Conference in Nairobi, bringing together citizen science researchers and practitioners from across the continent.
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| February 2024 | Memrise again separated community courses to a new website, making them inaccessible through the updated mobile app and removing offline download capabilities. |
| 2023 |
Amazon Mechanical Turk
Approximately 90% of workers were from the U.S., with about half of the remaining workers from India.
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| 2023 |
Citizen science
The European Union Prize for Citizen Science was established, awarded through Ars Electronica to recognize projects with significant social and political impact
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| 2023 | Memrise integrates a GPT-3-powered AI Language partner into its official courses, aimed at helping language learners practice human-like conversations and overcome the 'confidence gap' in language acquisition. |
| 2023 | UNESCO publication recognized the Memrise projects for Ume Sámi and Kristang languages as 'inspiring stories' in indigenous language documentation and preservation. |
| 2023 | Brainly released multiple AI-powered products, including an AI Tutor and personalization tools. |
| 2023 | Meta Platforms revealed that China's Ministry of Public Security's Spamouflage influence operation had targeted Quora. |
| 2023 | The Chinese Communist Party's Publicity Department recommended expanding the party's use of Quora. |
| 2023 | Reddit downsized from an office in the Mid-Market neighborhood to an office in the South of Market neighborhood in San Francisco. |
| December 8 2023 | Memrise closed its community forum as part of the transition away from supporting community-created content. |
| November 2023 | Memrise announced plans to 'sunset' user-created courses, signaling a shift away from community-generated content. |
| November 2023 | Reddit began a comprehensive rebrand, including a new logo, typeface, brand colors, and an updated mascot Snoo, in preparation for a potential 2024 IPO. |
| October 17 2023 | Reddit announced the winding down of Moons cryptocurrency by November 8, causing a significant crash in its value of over 90%. |
| July 20 2023 | Reddit launched the third iteration of r/place, which was heavily protested by users and developers due to the ongoing API controversy and CEO Steve Huffman's decision to make third-party app development prohibitively expensive. |
| June 12 2023 | Reddit moderators initiated a protest by making their communities private or restricting posting, in response to the API pricing changes. The protest was initially planned to last until June 14. |
| May 2023 | Reddit launched Moons, a site-specific cryptocurrency for the platform. |
| May 31 2023 | Apollo developer Christian Selig announced that Reddit's new API pricing would force him to cease development of the Apollo app, sparking community outcry. |
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This contents of the box above is based on material from the Wikipedia articles CrowdOptic, Open Food Facts, Reddit, Memrise, Citizen science, Quora, Amazon Mechanical Turk, Hyperloop pod competition & Brainly, which are released under the Creative Commons Attribution-ShareAlike 4.0 International License.