You will find here on this page some tools of search or the links for useful sites :

Kartoo - Excellent research engine.

• FAQ - General information, in particular on Excel.
• Support Online (Microsoft) - It is the base of data in line of Microsoft of the articles concerning all their products.
• Astalavista.box - Engine of research for various elements .
• support.microsoft - Technical support of research of Microsoft .

• Google - Research service on the subjects of discussions in the archives of the newsgroups
  
• Public newsgroups - Newsgroups dans microsoftpublic.excel.
• news:comp.apps.spreadsheets

xrefer's content includes encyclopedias, dictionaries, quotations, and a range of subject-specific reference titles such as art, business, literature and science

• Spreadsheetstyles - Useful addresses of sites on Excel.

• Housecall - HouseCall detects the majority of the viruses known in the world. The service of analyse on your computer is done directly on line.

• Systran.aol - Input just the text and choose the language of your choice.
• AltaVista - Translator
• Microsoft-windows - Currency European

• eFunda - Fundamental engineering, formulas, mathematics, etc.
• Chemical Engineering - Guide of research on various subjects.