Reference sites

AskOxford: fun English language resource
Damn Interesting - obscure facts
Earth Calendar - holidays around the world
Everyday Mysteries - fun science facts from the Library of Congress
Hoover's Online - business profiles
Information Please Almanacs
InfoSpace
Refdesk - facts on the net
Reference links from the New York Times
RhymeZone - find rhyming words
Search Systems public records locator
The Borowitz Report —€“ satirical pseudo-news
Yellow pages from Verizon

Searching the Web

Ask - maybe a new champ!
Black Box Search - search without being tracked
Clusty, from Pittsburgh'€™s Vivisimo
Google - the champ!
Librarian's Index to the Internet
Search Engine Showdown
Search.com - meta-search more than 800 specialized search engines

Writing Style

Acronym Finder
Bartleby.com - reference books and more
Buzzwhack -€“ demystifying buzzwords
DICT -€“ multiple online dictionaries
Dictionary of Difficult Words
International English from a British Viewpoint
Online etymology dictionary
Tech writer's (tongue-in-cheek) style guide
Thesaurus.com

Humor and entertainment

Classic TV outtakes and bloopers
Modern Humorist
That's Ironic
The Daily Show on Comedy Central
The Onion
Worst Country Song Titles
Common errors in English