Which scientific publishing innovation was launched in 2000 as an early adopter of the 'open access' publishing model, allowing researchers to publish while making content freely available to readers?

Scientific journals and databases are crucial for researchers to stay informed about breakthroughs in their fields. The business models behind these knowledge repositories have evolved significantly over time, with various subscription approaches being developed to balance access to knowledge with sustainable publishing. Test your knowledge about the scientific publication industry and its subscription models!

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Public Library of Science (PLOS)
Elsevier ScienceDirect Premium
Nature Portfolio Select
Wiley Knowledge Consortium