Our Dataset: 199 Online Services and Their Paywall Setups

For services with a pay-per-view access model, the
Note:
– Grayed out services either have discontinued paywalls or have never had paywalls.
– For pay-per-view services, the Cost indicated is either a standard one-time fee or an average of all available prices (for services with a full database of prices, such as certain academic journals and e-libraries).
– Outside of pay-per-view, the Cost pertains to monthly subscription fees.

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