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.