Acrostic
Acrostic 3.0, Acrostics 101, Acrostics Network, Alberta Views, Arsinoes, Bright Sparcs, Coaster Crostic, Double Reed Society, Dr Owkword's, E-Crostic Software
Books and Magazines
Bio Puzzles, Celebrity Crossword Puzzle Books, Lace 2, Lovatts Crosswords and Puzzles, Merl Reagle's Sunday Crosswords, Names Names Names, Puzzle Buffs International, Puzzle People
Contests
All You Need To Know About Puzzle Contests, American Crossword Puzzle Tournament, Puzzle Players Weekly, Puzzles For Profit, The Contest Center
Creation Software
Across and Across Lite, Arensus Crossword Puzzle Editor, Crossdown, Crossword Compiler, Crossword Construction Kit, Crossword Express, Crossword Forge, Crossword Maker, Crossword Studio, Crossword Weaver
Cryptic
Ben Robinson's Cryptic Crosswords, British-style Cryptic Crosswords, Crossword Links, Crossword.telegraph.co.uk, CrosswordEurope, Cullen Cryptic Crosswords, Free Crosswords, Independent Cryptic, Jim's Cryptic Crossword Collection, Lexcentrics
Custom Puzzle Services
Crosswords by Myles Mellor, Custom Crossword Puzzles by Owen Carter, Custom Crosswords, Master Puzzles, Motor-Cross Crossword, Personal-Puzzles.com, Pete the PuzzleMan
Solving Tools
ABC Genius, Allwords.com, Amo's Online Crossword Puzzle Dictionary, Chris F.A. Johson's WordFinder, Crossinary, Crosskit.com, Crossword and Scrabble Aid, Crossword Dictionary, Crossword Helper, Crossword Maestro
About.com Crossword Puzzles
Offers reviews and information about several puzzle sites.
Aquarium Fish Crosswords
Fish-themed puzzles to print and solve.
Australian Crossword Club Site
Offers word lists, anagrams, and a monthly club magazine.
Brian Jacques: Redwall Crossword Puzzles
A collection of themed crosswords based on British author Brian Jacques's Redwall Abbey.
ClueMaster
A collection of puzzles available to solve online or download. Fee required.
Crossword Puzzle Games
Offers thousands of puzzles ranging in size and difficulty. Site also offers a creator and a solver.
Crossword Puzzles
Offers many types of crossword puzzles, creation software, and solving tools.
Crossword Puzzles and Blokkiesraaisels
A collection of various styles of puzzles by Anina Roux, compiled for magazines and newspapers in South Africa.
Crossword Puzzles: The Complete Guide
Offers free puzzles to solve, tips for creators, a history, and links to other related resources.
Crossword Station
Offers free themed puzzles to play online or print and solve.
CrosswordLinks.com
A comprehensive resource with rules and helpful tips, articles, software, forums, and information about leagues, tournaments and online play.
Crosswords, Word Puzzles and More
Free daily puzzles available to print out and solve.
Crosswordsite
Both American and British English styles graded from easy to hard for solving online or on paper.
drawAblank software: PuzzleGetter
Utility to download crossword puzzles from various newspapers in AcrossLite format. (for Mac OS X)
Guardian Unlimited Crosswords
Paid crossword subscription site with puzzles that can be solved online or printed out.
Harry Potter Crossword Puzzle
140 themed clues that cover the first three books.
I Love Crosswords
Hundreds of downloadable crosswords available to paid subscribers.
MacNamara's Band Inc. Crossword Puzzles
Available to download and solve using Across Lite software. Custom puzzles are also available.
Monograph on Crosswords
An instructional and philosophical essay by an enthusiast. Also gives links.
Peter & Penny's Crossword Puzzles & Q
Available to print and solve.
Puzzle Choice
Offers online and offline versions. Includes different styles such as alpha-cross, cryptic, and codeword.
Puzzle.TV
Subscription-based site with new puzzles daily. Also has word search, codebreakers and cryptograms.
Puzzlers Cave - The Online Crossword Community
Free cryptic and themed crosswords to print or play online. Also offers a creation tool and forums.
Scientific Crosswords
A collection of themed puzzles to download and solve.
Sloth2Toed Puzzle Page
A collection of puzzles from a variety of sources. Includes standard, acrostic, and daisy chain.
The Crossword Centre
A resource guide with links, books, software, and a collection of interactive and downloadable puzzles.
The New York Times Crosswords & Games
The daily crossword puzzle with four ways to play, plus free classic crosswords and trivia quizzes. Subscription required.
The Puzzle Society
Paid subscription site offering online and offline versions of daily, weekly and monthly puzzles.
The World's First Crossword
Read about and solve crossword by Arthur Wynne, first published in the New York World in 1913.
Tidbits Puzzles
A collection of tidbits style crosswords.
Times Online
Offers paid subscription to weekly and monthly puzzles from The Times and The Sunday Times.
Wordfinder
Creation, solving and drafting software available on CD-ROM. Also offers partial word search assistance with wildcards.
Xwords.co.uk
Play online or print and solve. Also offers creation tool. Registration is free.
Yahoo! Games: Crossword
New puzzles daily, archived for two weeks. Free registration required.