Web — leaderboards.

d

del.icio.us

Social bookmarking service that popularized tagging as a web concept

G

Google Answers

Google's paid expert Q&A service where researchers answered questions for a fee

G

Go.com

Disney's internet portal powered by Infoseek

A

Ask Jeeves

Natural-language question-answering search engine fronted by a British butler mascot

A

AltaVista

One of the most powerful early search engines, capable of full-text indexing of the web

E

Excite

Web portal and search engine that dominated in the mid-1990s alongside Yahoo

Y

Yahoo Search

Yahoo's standalone search product, once the most-used search engine in the world before Google overtook it

G

GeoCities

Yahoo's user-generated homepage community, organized into themed neighborhoods

N

Netscape Navigator

The browser that brought the internet to the masses, holding 90% market share before Microsoft bundled Internet Explorer for free

L

Lycos

Search engine and web portal spun out of Carnegie Mellon, briefly one of the most-visited sites on the internet

W

WebCrawler

The first full-text search engine to index the entire web, launched from the University of Washington in 1994

I

Infoseek

Early search engine and web portal acquired by Disney to power Go