- Google and Wikipedia have their place in getting you started but they are not scholarly.
- Geological Sciences Subject Guide
- Best places to look online for papers related to your research:
- GeoScienceWorld with GeoRef
- Web of Science (WOS)
- Smithsonian/NASA Astrophysics Data System (ADS) for papers in physics, geophysics, astronomy/astrophysics, and planetary research.
- SciFinder for geochemistry papers.
- ArXiv Eprints for citable first published articles in geophysics and planetary astrophysics.
- Best places to look for online reference books or data