Resources for those who translate

Be sure to check out my latest project Freelangonline.com (over 80 free dictionaries)

Words
1 000 most commonly used words
50 000 words sorted by usage
Irregular verbs
Words ending with "ing"
Words ending with "ed"

(source: Brian Kelk's page)
(source: Brian Kelk's page and BNC information)
(source: various web pages)
(source: Brian Kelk's page and BNC information)
(source: Brian Kelk's page and BNC information)

Phrases
List of commonly used phrasal verbs
Commonly used idioms
English proverbs
(source: various web pages)
(source: various web pages)
(source: various web pages)

Names
World countries
American states
Female first names
Male first names
Common last names (only most common)
Names of stars
Names of counties in USA
Names of sub-counties in USA
Names of towns in USA
Names of world cities
Names of world towns

(source: various web pages)
(source: various web pages)
(source: US Census)
(source: US Census)
(source: US Census)
(source: various web pages)
(source: US Census)
(source: US Census)
(source: US Census)
(source: World Gazetteer)
(source: World Gazetteer)

Most complete collection of english words is in Spell Checker Oriented Word Lists (SCOWL)
(about 500 000 different words).