Interesting Links.

Useful web sites.

The information in Internet is so much, that it crushes. And usually it is difficult to find data precise. Not always we have the time necessary to visit all the sites that offer to us after a search. Sometimes, we only needed to confirm a data or to clear a doubt. Here it is where the digital encyclopedias and dictionaries become very useful, sites of reference to have to few click of distance. And they have, in addition, an advantage on its pairs of paper: they are updated frequently, they corrected its errors and they can offer multimredia contents.
It is so much the information on the Internet, that overwhelms.

LIBRARIES.

World-wide library.
1,170 articles of the Continents.
With the UNESCO support

ENCYCLOPEDIAS

British encyclopedia
Microsoft Encarta version in line
Wikipedia, done by volunteers
Encyclopedia.com

DICTIONARY

Spanish Royal Academy
Elmundo.es
Elcastellano.org
Diccionarios.com
Dictionary.com
Wordreference.com
Dictionarium.com

CELEBRATE PHRASES
Brilliant phrases for all time on the diverse subjects.

Bartleby.com
Buscabiografias.com

MEDICINE
A lot of information on the human body, its operation and its diseases.

Medline Plus
Msd

BIOGRAPHIES
Life and builds of the men who forged the history of our country and the world.

Finder of biographies of famous.
www.biografiasyvidas.com biographie.net/es
The First Web Site of Argentinian History (214 biographies of Argentinian personages)
Micromegas
Argentinian Literature Contemporanea

AUTOMATIC TRANSLATORS
Very useful to know how a word is said in another language
or to know the meaning of a simple phrase.

Yahoo! Babel Fish - Translator of Texts and Web Pages
SDL FreeTranslation.com

CONVERSIONS
In order to calculate the value of a currency with respect to another one and to compare measures of, length, etcetera.

El Universal Currency Converter ® de XE.com
Conversiones.Conversor of area, length, weight, temperature and volume

PERIODIC TABLES
Information on the composition atomics of the elements, his weight, symbol, how one names them in other languages, et cetera.

Lenntech Periodic Table
The Mexican Olympic Games of Chemistry
WebElements Periodic Table of the Elements

EQUATIONS AND CONSTANTS
A listing of equations and constants for calculations in mathematical, algebra, astronomy, statistic, geometry or chemistry.

The site for Constants and Equations (mathematical, astronomy, scientific constants)
Equations - EquationSheet.com (all kind of equations)
Micromegas (mathematics, phisical, geometry, trigonomety, statistics,etc.)

MAPS
Maps and planes worldwide with information on its geography and political division.

National Geographic
World Sites Atlas
World Map

FLAGS
Two Sites for lovers of vexilología, with information on all the national flags on the world.

Flags of the World
World Flag Database