Translators

Babel Fish (up to 150 words)
Free Translator.com (a selection of the best free Translators, Dictionaries and language courses on the Web; easy to use, and for all languages) 
Free Translators Online or Download

Google Translator
IM Tranlator (translate between Albanian, Arabic, Bulgarian, Catalan, Chinese (simp.), Chinese (trad.), Croatian, Czech, Danish, Dutch, English, Estonian, Filipino, Finnish, French, Galician, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Latvian, Lithuanian, Maltese, Norwegian, Polish, Portuguese, Romanian, Russian, Serbian, Slovak, Slovenian, Spanish, Swedish, Thai, Turkish, Ukrainian and Vietnamese languages; hear any text in the following languages: English U.S., Chinese, French, German, Italian, Japanese, Korean, Brazilian Portuguese, Russian and European Spanish; enter text in Arabic, Bulgarian, Czech, Danish, Dutch, Estonian, Farsi, Finish, French, German, Greek, Hebrew, Hindi, Hungarian, Icelandic, Irish, Italian, Latvian, Lithuanian, Norwegian, Portuguese, Polish, Romanian, Russian, Slovak, Slovenian, Spanish, Swedish, Turkish, Ukrainian, and Urdu languages using Virtual Keyboard; check spelling in English, French, German, Italian, Portuguese, Russian, Spanish, and Ukrainian languages using online Spell-checker; look up words in the dictionary in English, German, French, Italian, Portuguese, Russian, and Spanish languages; convert an unreadable email in Russian language to the proper encoding using the Decode function; drag-n-drop or copy-paste a multilingual text to/from any application; print text; email your messages to your friends
 

NetLingo (has thousands of definitions that explain the online world of business, technology, and communication, including the largest collection of Internet acronyms and text message shorthand)
Paralink (translate to any language)
Translate any Language and Convert to Speech

TransLit (translates English to slang or chat or chat or slang to English)

World Lingo (free online language translator with limit of 500 words; dozens of languages)

Interactive Calendars and Calendar Tools

Surfing the Net with Kids
Thinkfinity (all content areas included)
DE Streaming (log in, then choose Teacher Center, then Calendar)
Daily Dose of the Web from Internet for Classrooms
Education World Printable/Editable Calendars
Virtual Middle School Library Calendars (extensive grouping)
Time and Date.com (make customized calendars) 
Vertex42 Calendars - full of resources 
CalendarLabs - one stop destination for all calendar needs; different kind of printable calendar for any year between 1800 and 3000; find and customize calendars; calendars with holidays available in different format for more than 20 countries; create a photo calendar using your own photo or with a photo available here; calendar content for blogs and websites.

Tools for Teachers

Adobe Tutorials and Lesson Exchanges : Adobe Digital Kids Club - integrate digital photography and digital into classroom activities; Curriculum - lessons, course guides, projects; Training - free training with Acrobat; Showcases - see what educators and students have created 

APTE Puzzle and Clip Art Center: play e-puzzles or create e-puzzles; FREE, but register

Bookmark Managers: FREE and always accessible if you have Internet access
Certificate Maker 
Certificates for Teachers from TeacherPlanet 
CNET.com: electronics reviews, software reviews, latest prices, tech news, tech auctions, how-to's, downloads, web building, etc.
Class Timer 
DiscoverySchool.com: FREE online resources; hundreds available online or create your own; clip art, glossary builder, puzzle maker, quiz center, vocabulary quiz whiz, worksheet generator, lesson plans, message boards, scramble, mix up, more 
EasyTestMaker: multiple choice, fill in the blank, matching, short answer, true/false, multiple sections; FREE, but register 
EasyType! FREE online typing tutor 
EdHelper: some sections require membership 
Education World Tools and Templates: awards, certificates, back to school, bulletin boards, assessments, classroom organizers, flyers, posters, signs, graphic organizers, rubrics, parent-teacher, language arts, math, much more 
Educational Press: FREE Web-based program allows you to create quizzes, study sheets, match across, bingo boards, and flash cards easily 
eHow: answers to practically ANY question you may have relating to your computer, the Internet, software applications, etc.
Fair Use: Stanford University Library, Legal Web and Databases Search 
Flashcard Exchange: 14,045,637 flashcard library; create your own or use online cards; FREE, but register 
Filamentality: Create a scavenger hunt, Internet sampler, hotlist of websites, webquests, and more 
Flip Book Creator: Students may create and print flip books up to 10 pages. 
Forms and Letters from Teacher Tools 
FormSite: allows you to create online databases, accessible through any web browser - create quizzes, book databases, surveys, etc.
Free Online Graph Paper/Grid Paper PDFs 
FreeFoto.com: 121,224 images in 156 sections divided into 3353 categories 
FunBrain.com: create quizzes, worksheets, flashcards, etc., for your class to take online, with results emailed to you 
FUSION Educators Integrating Technology: Calendars; Puzzle Makers; Templates; Tutorials; Publishing Presentations Onlines, more 
iKeepBookmarks.com: keeps your bookmarks online 
Interest Calculator - Compound Interest Calculator, EconoEdLink Calculator 
Internet4Classrooms: awards, certificates, books, bookmarks, bulletin boards, calendars, flashcards, forms, templates, games and puzzle makers, lesson plan templates, planning tools, worksheets, 3-D printables, assessment tools, new teacher help, portal sites, storage sites, web page hosting 
ISTE (International Society for Technology in Education) 
Kodak Picture Center 
Learning Page.com: huge collection of professionally produced instructional materials for downloading and printing; EWE BOOKS are also included and are downloadable, printable, and designed to be folded and assembled to make a 16-page book, complete with 16 pages of teaching notes to each story, 20 funsheets with activities relating to each story, and Fact Files for all the characters in the story; FREE, but register 
Module Maker - Build your own Online Research Module that will challenge your students to make up their own minds while supplying them with rich information to support such thinking. 
My Bookmarks.com: keeps your bookmarks online FREE 
My Teacher Tools : comprehensive FREE collection of teacher tools; just register 
NCES Kids Zone: gr. 3-12; offered by National Center for Educational Statistics; sections include College Search, Graph Creator, Dare to Compare, Grab Bag, Chances 
OurTimeLines.com: Create personalized timelines showing how your life fits into history. You may generate as many as you like, and put them on your own webpage. You may also generate a list of notable people in history who were born on the same day as you. 
Ozline.com: Learning with the World (Surf, Stumble, Search & Lurch; What's on the Web; The Idea Machine; Web Flow; Filamentality; Beyond the Sea of PocketMod: FREE Printable Widgets; recyclable personal organizers 
PC Show and Tell: Answers on the Fly
PDF to Word Convertor (easily and quickly convert PDF documents to DOC/RTF files) 
PocketMod: FREE Printable Widgets, including lines, grids, tables, story boards, music staff sheets, calendars, organizers, games, and more; drag, drop, print 
PriceWatch.com 
ProProfs: The Knowledge FREEway : quizzes, flashcards, blogs; FREE, but register 
ReadWriteThink Student Materials: MANY tools available for both you and your students 
Rona's Teacher Tools: rubrics, puzzle makers, theme units, lesson plans, certificates, webquests, calendars, language tools, flashcards, distance calculators, dictionaries, maps, biographical, almanacs, encyclopedia, quotations, library tools, statistics, online journals, games, time tools, periodic table, international translators, more
Redhaven Outline (FREEware; Windows version only, Mac version coming soon; outline editor; quickly build and edit outlines; info can be searched, viewed from multiple perspectives, and exported in many different formats; open multiple outlines  simultaneously, allowing branch information to be copied from one outline to another.)
Scholastic's Teacher Tools: rubric maker, flash card maker, spelling wizard, calendar, to-do list, class set-up tool, more 
SchoolExpress - FREE Worksheets: all content areas; OR create your own worksheets (multiple choice, spelling, writing sentences, word scrambles, word walls, flash cards, math worksheets, awards) 
SchoolNotes: allows you to post notes, flashcards, links, calendars, and more,  for students and parents - FREE, but register 
Sites for Teachers: 583 sites of educational links 
Study Stack: designed to help you memorize information about various subjects. Your computer display a stack of "virtual cards" which contain information about a certain subject. Review the information at your own pace discarding the cards you've learned and keeping the ones you still need to review. Each card can show multiple pieces of information; and the whole stack can be automatically sorted by any one of the pieces of information. When you enter the data for a study stack, the same data can automatically be displayed as flashcards, a matching game, a word search puzzle, and a hangman game. You can also export the data to your cell phone or PDA so you can review it when you are away from the computer. Use those provided in ALL subject areas or create your own. 
TeacherWeb: allows you to create a website easily for announcements, homework assignments, and a calendar for parents & students 
techLearning: articles, grants, contests, forums, reviews, curriculum sites, sponsored by Technology & Learning Magazine, the Well Connected Educator, and SchoolTECH Expo 
Templates from Education World (awards, bulletin boards, calendars, newsletters, organizers, and all content area tools and templates)
Trackstar: Thousands of lessons online; create your own lessons and post them online 
tutorialfind: tutorials on everything Macintosh from graphics, Microsoft Word, computer basics, web development, hardware, multimedia, music, etc. 
Virtual Field Trips Online K-12 Education: explore online field trips 
Word Search Creator from A to Z Teacher Stuff 
Web Searching Tutorials from About.com