Google is a Web search engine that uses a search algorithm to return sites based on relevancy. Advanced search capabilities allow you to further customize search query.

Use to search for scholarly literature, including peer-reviewed papers, theses, books, preprints, abstracts and technical reports from all broad areas of research. Includes articles from a wide variety of academic publishers, professional societies, preprint repositories and universities, as well as scholarly articles available across the web.

This government search engine from Google includes federal, military, and state web sites.

Search for jobs in the sciences, as well as for information on associations, conferences, companies, and more.

Leading search engine fand comphrehensive directory for chemical and related industry professionals. Includes access to chemical names, jobs, market research and consultants.