All 4 One Use Alta Vista, HotBot, Lycos, and Excite (uses frames)
Dog Pile Use About.Com, AltaVista, Dogpile Open Directory, Dogpile Web Catalog, Direct Hit, GoTo.Com, Infoseek, Looksmart, Lycos, Lycos's Top 5%, RealNames, and Yahoo

A2Z Solutions
About.Com
AceKids
Alta Vista
AOL NetFind
BizWeb
CareGuide
Claymont.com
ComFind
Cyber Directory
Direct Hit
Dogpile Open Directory
Education Virtual Library
Excite
Go To
HotBot
Infoseek
Jayde
Link Exchange
LookSmart
Lycos
Lycos's Top 5%
Magellan
Meta Gopher
NH.Com
Northern Light
Planet Click
Questfinder
Savvy Search
Snap
Snooper
Starting Point
Surf Gopher
USA Shopper
Webcrawler
What's New?
What-U-Seek
Yahoo!