Whether you'd like to know the meaning of a certain immigration term, who is eligible for U.S. visas or green cards, or whether you need a lawyer to handle your particular situation, this is the place to start.
Eligibility for U.S. Lawful Permanent Residence (a Green Card)
Non-Resident vs. Resident Alien Status
The terms "resident alien" and "non-resident alien" are actually terms from the federal tax laws. Resident aliens owe tax on all their income, while non-resident alien owe tax only on income generated from U.S. sources.