MY FAVOURITE DICTIONARIES ONLINE

http://education.yahoo.com/reference/dict_en_es/http://diccionario.reverso.net/ingles-espanol/http://www.macmillandictionary.com/
http://www.wordreference.com/es/en/translation.asp?spen=
http://diccionario.reverso.net/ingles-espanol/
http://www.thefreedictionary.com/
http://dictionary.cambridge.org/toolbardictionary.html
http://www.spanishdict.com/
http://www.visualthesaurus.com/vocabgrabber/