Search to find and search to organize
Searching is becoming the new dominant way of organizing information. Rather than archiving information, searching is becoming perhaps more effective and convenient. Here I will gather some different search tools for finding information on the web. Many of the engines share resources, but I will try to add som descriptions of their differences when time permits.
Definitions and description from Wikipedia.org:
A search engine or search service is a program designed to help find information stored on a computer system such as the World Wide Web, inside a corporate or proprietary network or a personal computer. The search engine allows one to ask for content meeting specific criteria (typically those containing a given word or phrase) and retrieves a list of references that match those criteria. Search engines use regularly updated indexes to operate quickly and efficiently. Without further qualification, search engine usually refers to a Web search engine, which searches for information on the public Web. Other kinds of search engine are enterprise search engines, which search on intranets, personal search engines, which search individual personal computers, and mobile search engines. However, while different selection and relevance criteria may apply in different environments, the user will probably perceive little difference between operations in these.
The website Searchenginewatch.com provides detailed information on search engines and their background.
Internet Archives
The Internet Wayback Machine
Internet Search Engines and providers
Description: The Open Directory Project is the largest, most comprehensive human-edited directory of the Web. It is constructed and maintained by a vast, global community of volunteer editors (from the open directory website).
Database search engines
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Searching 
