Comprehensive Searching Services

Some services attempt to be comprehensive for all information, but no one does more than about 20% and that percentage is bound to get lower over time. Some search whatever information they have received, such as the What's New on the Web collection.

ALIWEB (Archie-Like Index of the Web) provides searching through registered collections.
Alta Vista at digital.com searches the web or news groups.
ArchiePlex is an Archie gateway for the World Wide Web.
COMMA Hotlist Database - Subject Search
CUI, Search WWW , (Centre Universitaire d'Informatique, University of Geneva) a searchable catalog of W3 resources collected from what's new, starting points, virtual library, ALIWeb, and more. It is mirrored several places around the world.
DejaNews allows searching through is large collection of indexed archived Usenet news.
EINet Galaxy allows you to search its hierarchy (including WWW documents), and the text of documents it references.
Excite
Filez provides searching service for FTP files.
Find-it provides a table of search forms for web, software, news, and people
Fish-Search searches the web starting at some URL. It searches indexes it finds, and fetches documents to search them.
Forum One offers a searchable index of over 210,000 web-based discussion forums.
GNA (Globlewide Network Academy) allows you to search or browse its two-level topic tree of references which you can add to.
Gov-Search.com a search service for US Government and Military sites. It is debatable whether this is comprehensive, but governments often try to be anyway.
InfoSeek has a free search service as well as a fee service.
LinkStar advertises accurate searches
Lycos
NorthStar
OpenText provides full text searching through its index of over 2 million web pages.
The Planet Earth is searchable.
SavvySearch will simultaneously search via several appropriate Internet Search Engines.
Snoopie claims to be the fastest ftp search engine with an index of 5 million ftp files at more than 400 servers.
http://www.supernews.com Supernews offers the most comprehensive search and categorization scheme for finding newsgroup discussions. Incorporated is a free and fully functional and speedy web based newsreader with threading, binary attachment decoding and posting capabilities. Over 30,000 Newsgroups available through this website.
WebCrawler
The Webhound WWW Document Filtering System searches for you and notifies you when something like what you like is found.
Thunderstone provides internet searching, and the search engine is available too.
The WWWW (World Wide Web Worm) .
Yahoo allows you to search by title, URL, or comments for its entries.
Inktomi Search Engine is the first fast web indexer with a large database.