Citizenship and Immigrations Services - This is the official
U.S. government site. The information is all free.
USA - This is another government website
that provides important information about American culture--greetings,
dating, friendships, personal hygiene, etc. Very good and interesting!
English for My Job - If you work at a restaurant, look at this website. It includes important vocabulary and language exercises. There are also exercises for people who work at hotels and in tourism. Your tips are sure to improve after learning English at this website!
Welcome to the United States - This is a guide for new immigrants.