Go to the previous, next section.
For information on database services, see section Commercial Databases. Not all databases on the Internet require payment for use, though. There do exist some, largely research-driven databases, which are publicly accessible. New ones spring up regularly.
To find out more about the databases in this section, contact the people directly responsible for them. Their areas of concentration and the software used to implement them are widely disparate, and are probably beyond the author's expertise. Also, don't forget to check with your local library--the reference librarian there can provide information on conventional resources, and possibly even those available over the Internet (they are becoming more common).
Go to the previous, next section.