There are a number of problems associated with using search engines. Searches can be slow, search engines can have a strong American bias and a search usually generates some irrelevant leads. The quality of sites located using a search engine can be variable as the sites have not been assessed. Virtual Libraries Virtual libraries arrange websites under subject headings giving users the option to either browse the subject sections or enter search terms. They are manually updated and maintained and are smaller than search engines.
Virtual libraries are useful because they tend to produce more relevant results.
Websites available through information gateways have been reviewed and evaluated giving the searcher access to high quality material. As with virtual libraries you have the option to perform a keyword search or browse the subject sections. There are a number of gateways based in the UK so American bias is less. Pinakes is a gateway to many other gateways and is a useful starting point. These may be free or on payment of a subscription.