We have online resources on this site to answer all your visa questions. Once you determine your visa type you can pay your visa fee, access your DS-160 form to complete online, and schedule your visa appointment online.
Are you applying for a nonimmigrant or immigrant visa?
If you are immigrating to the United States, you need to have a petition approved by the U.S. Citizenship and Immigration Services (USCIS). See the Immigrant Visa Information page for additional information. This process is handled separately by the Embassy.