Search Engines

1. Google
A very fast and comprehensive search tool with a simple search interface. One of the most popular search engines. Results ranked based on popularity.
http://www.google.com/

2. AltaVista
A very good comprehensive search engine. The first-ever multi-lingual search engine and still home to babelfish, the Web's first Internet machine translation service.
http://www.altavista.com/

3. Excite
Many broad general interest sections such as Travel, News headlines, weather etc are featured on the main page. Excite belongs to the Ask Jeeves network and offers customizable user home page as well.
http://www.excite.com/

4. Lycos
Excellent search engine. Good for searching multimedia including audio, video and pictures. Different versions for different countries and languages. http://www.lycos.com/

5. Teoma
Unlike Google's PageRank (http://en.wikipedia.org/wiki/Teoma), Teoma's technology (Subject-Specific Popularity) analyzes links in context to rank a web page's importance within its specific subject.
http://www.teoma.com/

6. Yahoo
Ranks based on relevancy. One of the first subject directories, and still one of the best for this method. Versions available in different languages. http://dir.yahoo.com/

7. How to Choose a Search Engine or Directory
Provides tips for choosing search engines describing search logic, search results, search options etc.
http://library.albany.edu/internet/choose.html

8. Internet Search Engine Guide
Provides detailed search tips for each search engines, but only includes the major ones.
http://www.unf.edu/library/guides/search.html

Meta Search Engines

 9. Clusty
Offers several categories including web, news, images and blogs. Allows user to customize tab to add blogs, government information, image search tabs and more.
http://www.clusty.com

10. Dogpile
Searches Google, Yahoo, AltaVista, Teoma/Ask Jeeves, About.com, FAST, FindWhat, LookSmart, and more. The Geographic search is for USA only.
http://www.dogpile.com/

 11. Ez2Find
Provides coverage of the major search engines, including AlltheWeb, Teoma, Demoz, Google, AltaVista, MSN (Inktomi), as well as about 1000 specialized databases.
http://www.ez2find.com/

 12. Ixquick
Searches major search engines and directories, but does not include Google.
http://www.ixquick.com/

 13. Vivisimo
Covers the major search engines, including MSN (Inktomi), Google, Open Directory, Ask Jeeves etc.
http://vivisimo.com

14. Web Crawler
Searches the larger search engines, like Google, Yahoo, Teoma, and more and returns results of web pages, news, photos, and more.
http://webcrawler.com/

UC/UCSD Search Tools

15. Sage
Includes UCSD Libraries recommended websites and electronic resources for UCSD academic disciplines.
http://libraries.ucsd.edu/sage/sage.html

16. UCSD search
Search UCSD web sites.
http://www.ucsd.edu/search.html

17. UCSD Directory
Search for contact information of UCSD faculty, staff and students.
http://rohan.ucsd.edu/campusdirectory/index.jsp

18. UC Directory
Provides a list of all 10 UC campus directories.
http://www.ucop.edu/services/direct.html

Business and People Search Engines

18. Infospace
Search people/business directories for US & the world.
http://www.infospace.com/

19. Switchboard
Search US businesses/persons by name, phone number, email etc. It includes maps/directions.
http://www.switchboard.com/

20. Bigbook
Yellow pages on the Web. Search by keyword or business name.
http://www.bigbook.com/

21. World Pages
Search for people/businesses.
http://www.worldpages.com/

Discussion groups and listservs

22. Google Groups (was Usenet)
Search through open discussion groups and Usenet postings. Join discussion groups of interest.
http://groups-beta.google.com/

23. Yahoo Groups
Find groups of interest and subscribe to discussion lists.
http://groups.yahoo.com/

24. Tilenet
An index of email discussion lists, news groups, and newsletters.
http://www.tile.net/lists/