8.5 Mio Euro EU project on Open Web Search launches new third-party calls – An invitation to researchers, innovators and computing centres to join the quest for a new Internet Search in Europe | Media Release

9 February 2024 | OpenWebSearch.EU – a consortium of 14 research partners – is once again calling for third-party project proposals to help building an open and independent Web Index (OWI) based on European values. Researchers, innovators and data centres are invited to submit their ideas until 4th April . Successful candidates can request funding between 50,000 and 150,000 EUR.

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New Calls for Third-party Proposals and new Funding Round to be Launched in February 2024

OpenWebSearch.eu to launch open calls #2 and #3 soon, offering funding and onboarding to third-parties

After Call #1 in March 2023 and the resulting successful onboarding of six third-party partners in November 2023, the OpenWebSearch.EU will call for proposals again in February: Calls #2 and #3 will invite researchers, innovators and data centres to submit their applications to participate in the Open Web Search mission and receive funding for their project ideas. The calls will launch in February, applications will be accepted until April 2024.

ows.eu Call #2:
Applications of an Open Web Index

Call #2 will particularly ask for proposals for applications of the Open Web Index. The Open WebSearch.eu project will provide access to pre-processed and indexed data in the terabyte range. Also it will deliver continuous, daily updates until the end of the project. Successful applicants should use and exploit the data provided in innovative applications scenarios or research topics.

Under this call, applicants will be able to apply for funding of between EUR 50,000.00 and EUR 100,000.00 for a funding period of up to 12 months.

ows.eu Call #3:
Onboarding of Data Centres

Call #3 will address computing and data centers to join the OpenWebSearch.eu network of infrastructure organisations and hosting parts of the OWSAI infrastructure. The ows.eu consortium aims to on-board data centers as a proof-of-concept for the developed technology and engage in discussions on creating a sustainable future infrastructure. Called will be universities, public infrastructure providers, data centres, companies (e.g., cloud providers) or research teams with a well established infrastructure. Applicants should be capable of providing a significant extension to the current OpenWebSearch.eu data and compute infrastructure, and engaging in relevant infrastructure-oriented R&D activities.

Under call#3, applicants can request funding between 100.000,00 and 150.000,00 EUR for a funding period of up to 12 months. Major cost categories can include infrastructure costs, other costs and human resources.


More information on the calls and the call application packages will be launched in February 2024 on the third-party call landingpage.

The open calls are part of the OpenWebSearch.eu community programme, aiming to integrating new third-party project teams into the OpenWebSearch.eu landscape and future activities for sustainable Research and Development. Therefore, the candidate third-party projects should probe the closely related topics addressed in the project and should aim at widening and enriching the existing R&D activities as well as suggesting new ones which are complementary to the project goals and aims. Ideally, the project results should be integrated with the OpenWebSearch.eu infrastructure.

NGI Forum 2023 Brussels – Recap and Recordings

In November, the #NGIForum23 took place in Brussels. With a focus on Digital Commons, the gathering brought together thought-leaders, policy makers, researchers and innovators in an inspiring event to discuss an open, more secure and citizen-centred internet of the future.

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Common Goals with Common Crawl

OWS.EU constantly thrives to move forward with more transparent, self-determined web search. With the aim to build a Europe-based Open Web Index, choosing trustworthy, powerful crawling partners is key. Common Crawl is one such dedicated and renowned partner. It is therefore an honor to be featured on their website in the official partners section.

Common Crawl is not only a major resource for web-innovations, but also an inspiring partner. We are particularly looking forward to co-operating on license-aware crawling and to integrate their crawls into our open web index,“ says Michael Granitzer, OWS.EU’s principal investigator.

The Common Crawl Foundation is an NGO that crawls the web and freely provides its archives and datasets to the public. Its mission: to democratize Open Web Search, “enabling free access to web crawl data encourages collaboration and interdisciplinary research, as organizations, academia, and non-profits can work together to address complex challenges.” The non-profit has significantly expanded its core team throughout the last two years and is continually growing.

We are proud to be an early partner, sharing a similar vision.

Six new partners to enrich OpenWebSearch.EU project | Media Release

Six third-party partners have joined the EU funded project OpenWebSearch.EU, introducing new technical, legal and economic research topics in support of a European Open Web Index.

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“Meet the StormCrawler users: Q&A with the OpenWebSearch.eu project” | Digital Pebbles

Interview on StormCrawler blog for an interview with Michael Dinzinger and Saber Zerhoudi, both researchers in the ows.eu project.

Learn about their research at the Uni Passau, about resource-efficient crawling and how they build crawling pipelines for an open web index – and why the heterogeneous infrastructure of the project is a major challenge in their work.

Read the interview here:


Third-Party Partners Successfully Onboarded into OpenWebSearch.eu Community Programme

Six third-party funding partners have joined the OpenWebSearch.eu Community Programme with projects surrounding technical, legal and economic expertise.

On October 27th 2023, OpenWebSearch.eu successfully onboarded six Third Parties who were selected subsequent to its first Open Call (announced in March 2023) for the OpenWebSearch.eu Community Programme in 2023. The selected partners were picked from 21 submissions with the goal to extend and enrich existing R&D activities that are relevant to the project in reaching key targets.

The call demanded contributions in form of research studies on legal or economic aspects of Open Search (Track 1) as well as on concepts for legally compliant data acquisition, processing, considering also societal constraints (Track 2).

Third-party projects should explore closely related topics of the project. They should aim to extend and enrich the existing R&D activities and propose new ones that complement the project objectives. The calls especially targeted smaller companies (i.e., SMEs, start-ups), individual innovators, individual researchers or research teams (e.g., doctoral or post-doctoral researchers).

The selected third-party projects are funded under the OpenWebSearch.eu Community Program. They receive partial fundings for their project contributions ranging between 25.000 and 120.000 Euros each.

OpenWebSearch.eu introduces the 6 Third-Party Projects:

„Market Potential Assessment for OpenWebSearch.eu: Quantifying benefits and costs of scaling EU web search“.
Provided by Mücke Roth & Company GmbH (Germany)
Click here for the partner profile.

„A Legal Framework for the development and Operation of an Open Web Search Index (Legal, Intellectual Property and Cyber-Security Aspects)“.
Provided by Prof. Dr. Matthias Wendland from Carl von Ossietzky University of Oldenburg (Germany)
Click here for the partner profile.

„Open Console Implementation“.
Provided by Mark Overmeer and Thao Phuong Nguyen from MARKOV Solutions (The Netherlands)
Click here for the partner profile.

„Legal Open European Web Index“.
Provided by Paul C. Johannes and Dr. Maxi Nebel (Germany)
Click here for the partner profile.

„Assessing Legal Risks and Mitigating Challenges in Open Web Indexes“.
Provided by Prof. Dr. Kai Erenli from BFI Vienna (Austria)
Click here for the partner profile.

„License-Aware Web Crawling for Open Search AI“.
Provided by Dr. Daniel Braun – University of Twente (The Netherlands), Dr. Bernhard Waltl – Liquid Legal Institute (Germany) and Balthasar Cevc – Fingolex (Germany)
Click here for the partner profile.

More Open Calls to follow

The next call for proposals will follow in the first quarter of 2024. To stay up to date regarding proceedings as well as to stay on top of the next Open Call, interested parties from research and business can follow OpenWebSearch.eu on the Socials (LinkedIn, Mastodon, Twitter/X), join the community Channel on MatterMost and regularly check our website: https://openwebsearch.eu/community


OpenWebSearch.eu is funded by the EC under GA 101070014.

Recap #ossym23 – relive the 5th international Symposium on Open Search at CERN

In October, Researchers, Tech experts, Political Representatives and Industry Executives came together to discuss about the foundations of a human-centric, transparent and open web search at CERN in Switzerland.

The team of the Open Search Foundation has prepared comprehensive reviews of all three days Read all about the keynotes and presentations – including pictures

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Proceedings #ossym22 – 4th international Symposium on Open Search

The proceedings of the 4th International Open Search Symposium #ossym22 have been published.

Vol. 4 (2022): Proceedings 4th International Open Search Symposium #ossym2022, 10–12 October 2022, CERN, Geneva, Switzerland

Volume two of the Proceedings of the International Open Search Symposium 2022 summarises articles and research results selected and presented at the Open Search Symposium 2022.

The proceedings are freely available and can be accessed via the following sources:


Direct link to pdf file:

ISSN: 2957-4935

ISBN: 978-92-9083-646-9


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#ossym23 – Register now for 5th International Symposium on Open Search

#ossym23: Registration is open

In October 2023, the Open Search community will gather at CERN in Geneva for its autumn meeting. For the fifth time, #ossym will provide a forum to discuss and further develop ideas and concepts of open internet search. Registration for the free event is now open.

Discuss all things Open Web Search and meet the OpenWebSearch.eu partners and community at the interdisciplinary conference on Open Search. Organized by ows.eu project partners Open Search Foundation and CERN, the International Open Search Symposium will again be hosted as a hybrid conference in Geneva from 4 to 6 October 2023.

5th International Open Search Symposium

CERN, Geneva (Switzerland) + online

4 to 6 October 2023



Discuss about all aspects of Open Web Search, such as:

  • Architectures and platforms
  • Societal and ethical challenges and solutions
  • Web Data Analytics and Web Mining
  • Large Language Models, Machine Learning and generative AI
  • Green computing and sustainability
  • Politics and governance
  • Economic dimensions, business models, applications of open search
  • Legal aspects of open search
  • and many more …

Information and Registration

More information is provided on the webpage of the organizer Open Search Foundation: opensearchfoundation.org/ossym23

#ossym23 5th Open Search Symposium 4-6 October 2023 CERN, Geneva, Switzerland

About the Organiser – Open Search Foundation e.V.
The Open Search Foundation e.V. is a European movement to create the foundation for independent, free and self-determined access to information on the Internet. In cooperation with research institutions, computer centres and other partners, we’re committed to searching the web in a way that benefits everyone.
Motto: “Together for a Better Net”. More info on the website: opensearchfoundation.org