Alfy (a large, well-designed Web portal for children)
www.alfy.com/

AOL (not the content provider, but their portal page...although they'd love for you to sign up)
www.aol.com/

Argus Clearinghouse (a portal for the more erudite user)
www.clearinghouse.net/

Audiopoint (new voice portal, still a bit bare at this writing)
www.myaudiopoint.com/

AvantGo (more of a push provider than a classic portal, and focused on handhelds)
www.avantgo.com/

BeVocal (another voice portal, still buggy but steadily improving)
www.bevocal.com/

Blink (build your own directory of favorite sites, accessible from any computer at any time)
www.blink.com/

Bomis (sort of a cross between a portal and a Web community -- users sign in and then build rings of sites that interest them)
www.bomis.com/

Chello (a European portal and ISP site with limited search capabilities)
www.chello.com/

Earth Station Nine (highly personal and well-organized portal and informational site)
www.earthstation9.com/

Excite (highly recommended)
www.excite.com/

GO Network (a badly organized morass of content from ABC/Disney, reluctant to offer the user a link outside their own content areas; Disney has decided to cut back on the Go service, leaving some former features in limbo)
www.go.com/

iVillage (large, multi-featured site mainly for women, and affiliated with plenty of medical and commercial sites)
www.ivillage.com/

Lycos
www.lycos.com/

MSN.com (highly customizable and lots of content, but very busy)
www.msn.com/

My Netscape (Netscape's reconfigured portal site)
www.netcenter.com/

My Way (nice configurable portal, less advertising than most)
www.myway.com/

Octopus (combination Web portal and information nexus; lets you put together your own "portal"; now part of Yahoo)
www.octopus.com/

Plastic (nice combination between a chat/BBS community and a news portal)
www.plastic.com/

Quepasa (bilingual English/Spanish site)
www.quepasa.com/

Seniors.com (caters to senior citizens)
www.seniors.com/

Slashdot (hi-tech oriented Net community) www.slashdot.org/

Snap! (now merged with NBCi's portal site)
www.nbci.com/

Tellme (voice portal, still in beta but quite usable)
www.tellme.com/

TwoToads (portal designed for kids and "family" use)
www.twotoads.com/

Yahoo! (still the big dog of portal sites and the standard-setter)
www.yahoo.com/

Zeeks (good kids portal)
www.zeeks.com/