Google Trends dataset shows top 25 queries from past 30 days across 50+ countries. Google Analytics Sample provides 12 months of ecommerce traffic data. Google Patents Research contains patent analysis output including translations
Wikidata is a collaborative multilingual knowledge graph hosted by Wikimedia Foundation. Project launched in October 2012 with €1.3 million funding. Contains 1.57 billion item statements as of mid-2024
Google Maps offers panoramic views and 3D perspectives with regular updates. NASA Worldview provides real-time imagery with 800+ layers. Esri's Way Back Atlas shows satellite maps from 2014 to present. Google Earth Pro allows interactive historical timeline viewing
Open Library offers multiple APIs for accessing book data. Book Search API serves as a single comprehensive solution. Works API provides access to specific works. Editions API enables querying editions by ID. ISBN API offers alternative access through ISBN 10/13 format
Open Library offers RESTful APIs in JSON, YAML and RDF/XML formats. Nearly every page on Open Library has or is an API. Data can be returned using .rdf/.json/.yml extensions
Google Dataset Search aggregates external data with clear summaries. Kaggle offers community-driven datasets with cloud collaboration tools. Data.Gov provides US government datasets with 200,000+ entries. Datahub.io focuses on business and finance with monthly updates