Tools to Use the Internet

Google	At present, arguably the best search engine available to the general public.
DejaNews Search Engine	A search engine designed specifically for the torrent of Usenet News postings, now run by the folks at Google.
MetaCrawler Search Engine	A search engine that uses a combination of search engines to locate web pages containing specific keywords.
Dog Pile Search Engine	A search engine that exhaustively searches other search indexes, and allows finds across the Web, Usenet, and even FTP sites.
NetSol WHOIS	Look up domain names and other information from Network Solutions.
InterNIC	Look up domain names and other information from the InterNIC.

A lot of news sources are either heavily biased or give off more heat than light. Here's a few places to go to get a dose of reality.

Cryptome	John Young is amazing. He culls a number of sources and provides detailed, up-to-date information on a variety of issues relating to security, cryptography, government, and other sundry topics.
The Crypt Newsletter	George Smith's clear thinking and biting social commentary make this newsletter an excellent means of separating the computer industry wheat from the chaff.
Computer Virus Myths	Rob Rosenberger runs a website devoted to clearing up the all-to-common hysteria and urban legends surrounding computer viruses and associated hoaxes.

Federal Communications Commission	Formed more than 60 years ago out of the 1934 Communications Act, this independent agency regulates the airwaves.
House of Representatives Law Library	The United States House of Representatives Internet Law Library, specifically the section dealing with Communications Law.
Cornell University Law Library	United States Code, Title 47. This section deals with federal communications law.
U.S. Patent Server	IBM has a great patent database server. You can search by keyword or by patent number, and the results will contain the actual page images.
CIA and UFOs	Read about the Central Intelligence Agency's involvement in UFO research and their attempts to cover it up.

Radio-related Sites

Dayton HamVention	The largest amateur radio convention in the United States, held each May in Dayton, Ohio. This is the place to go for electronics bargains.
KC5KTO's Radio Page	Lots of links for scanners and other radio topics.
Hamfest Listings	List of Hamfests around the country.
Scanner Model FAQ	Rich Wells' Frequently Asked Questions about radio scanners. Lots of good information about current and recent models.
Radio Modifications	Modifications and enhancements for a large number of radios.
Scanning Reference	Clay Irving's scanner reference and frequency lists.
AOR Manuals	On-line manuals (in PDF format) for a number of AOR receivers.

Links to electronics-related sites.

The Hardware Book

A comprehensive list of connector pinouts and cable diagrams.

Books

Reading, as they used to say, is fundamental.

Saving Bell Books

Universal Digital Library, holding some older, hard-to-find books on-line.

New Area Codes	New area code information, direct from Bellcore.
Reverse Lookup	From AT&T's AnyWho -- find a listing via phone number

Complete Sun and Moon Data for One Day	Obtain times of sunrise, sunset, moonrise, moonset, transits of the Sun and Moon, and the beginning and end of civil twilight, along with information on the Moon's phase from the United States Naval Observatory.
Pathfinder	Pathfinder is on Mars! After a seven month journey to the Red Planet, the Mars Pathfinder landed on July 4, 1997. Check NASA's Jet Propulsion Laboratory for up-to-date information.
Rover Communications	If you're curious about how the Microrover communications equipment works, check out this link.
Deep Space Network	Information on NASA's Deep Space Network.