Google Places
3,226 websites

Google Places offers both free and paid options

https://developers.google.com/maps/documentation/places/web-service/overview

The Places API is a service that returns information about places using HTTP requests. Places are defined within this API as establishments, geographic locations, or prominent points of interest.

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OpenLayers
9,859 websites

OpenLayers is free to use

http://openlayers.org

An opensource javascript library to load, display and render maps from multiple sources on web pages.

Market Share by Top Websites

1 OpenLayers is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.

2 In terms of market share, Google Places is clearly lagging behind, losing to OpenLayers in all segments.

Websites Categories

1 OpenLayers has better usage coverage in more websites categories. Including Law & Government, Science & Education, Travel & Tourism, Reference Materials and 20 other categories.

2 Google Places hasn't got a lead over OpenLayers in any websites category.

Geography

1 OpenLayers is leading in most countries, including United States, Germany, France, Russia and 115 other countries.

2 Google Places is leading in Canada, Australia, Pakistan, Saudi Arabia and 11 other countries.