dogpile（互联网搜索工具）

主题目录

About

http://about.com

Complete

http://aip.completeplanet.com

Google Diectory

http://google.dir.com

Infomine

http://www.infomine.ucr.com

Internet Public Library

http://www.ipl.org

KidsClick

http://kidsclick.org

Librarians’ Internet Index

http://lii.org

Link Library

http://www.eduplace.com/linklibrary/

WWW Vitual Library

http://vlib.org

教育主题目录

Education Index

http://www.educationindex.net

Educator’s Reference Desk

http://www.eduref.org

搜索引擎

Ask

http://www.ask.com

Google

http://www.google.com

Lycos

http://www.lycos.com

msn search

http://search.msn.com

Yahoo!

http://www.yahoo.com

Google

http://www.google.com

Yahoo

https://www.yahoo.com/

Excite

http://www.excite.com/

search-document

http://www.search-document.com/

元搜索引擎

Clusty

http://clusty.com

Dogpile

http://www.dogpile.com

Metacrawler

http://www.metacrawler.com

Search.com

http://www.search.com

Surfwax

http://www.surfwax.com

Vivisimo

http://www.vivisimo.com