INFOPASS
https://infopass.uscis.gov/
INFOPASS IS A SERVICE THAT LETS YOU SCHEDULE AN APPOINTMENT WITH A USCIS IMMIGRATION OFFICER BY USING THE INTERNET. IF YOU HAVE AN IMMIGRATION ISSUE OR A QUESTION ON A PENDING APPLICATION, INFOPASS WILL LET YOU SCHEDULE YOUR APPOINTMENT BEFORE APPEARING AT YOUR LOCAL USCIS OFFICE.

CASE STATUS
https://egov.uscis.gov/casestatus/landing.do
TRACK YOUR APPLICATION OR PETITION AS IT MOVES THROUGH THE IMMIGRATION PROCESS. IN ORDER TO TRACK YOUR CASE, YOU WILL NEED YOUR APPLICATION RECEIPT NUMBER. THE 13-CHARACTER APPLICATION RECEIPT NUMBER CAN BE FOUND ON APPLICATION NOTICES YOU HAVE RECEIVED FROM USCIS. IT BEGINS WITH THREE LETTERS SUCH AS (EAC, WAC, LIN, OR SRC). DASHES ("-") SHOULD BE OMITTED WHEN ENTERING A RECEIPT NUMBER. HOWEVER, ALL OTHER CHARACTERS, INCLUDING ASTERISKS ("*"), CAN BE INCLUDED IF LISTED ON YOUR NOTICE AS PART OF THE RECEIPT NUMBER. PLEASE NOTE THAT THIS SERVICE DOES NOT APPLY TO ASYLUM APPLICATIONS.

CASE PROCESSING TIMES
https://egov.uscis.gov/cris/processTimesDisplayInit.do
USCIS GENERALLY PROCESSES CASES IN THE ORDER IN WHICH THEY WERE RECEIVED. ON THIS PAGE YOU CAN FIND AN ESTIMATE OF HOW MUCH TIME THE OFFICE HANDLING YOUR CASE CURRENTLY TAKES TO PROCESS YOUR TYPE OF APPLICATION, PETITION, OR REQUEST. IN ORDER TO USE THIS SERVICE, YOU WILL NEED TO KNOW THE TYPE OF CASE YOU HAVE AND WHERE THE CASE IS CURRENTLY BEING PROCESSED.

CIVIL SURGEON (DOCTOR) LOCATOR
https://my.uscis.gov/findadoctor
WHEN USCIS REQUIRES A MEDICAL EXAMINATION BE PERFORMED IN THE UNITED STATES, THIS EXAM MUST BE PERFORMED BY A CIVIL SURGEON WHO HAS BEEN DESIGNATED BY USCIS. (IMMIGRATION MEDICAL EXAMINATIONS CONDUCTED OUTSIDE THE UNITED STATES MUST BE PERFORMED BY A PANEL PHYSICIAN WHO HAS BEEN DESIGNATED BY THE DEPARTMENT OF STATE.)

PASSPORT PHOTO REQUIREMENTS
http://travel.state.gov/content/visas/english/general/photos.html
PASSPORT SIZED PHOTOGRAPHS ARE REQUIRED FOR MANY OF USCIS APPLICATIONS. THIS SITE EXPLAINS THE REQUIREMENTS FOR THESE PHOTOGRAPHS, INCLUDING SIZE, BACKGROUND COLOR, AND PROPORTIONS.

VISA BULLETIN
http://travel.state.gov/content/visas/english/law-and-policy/bulletin.html
THE VISA BULLETIN DETERMINES WHICH CASES CURRENTLY ARE ELIGIBLE FOR PROCESSING. THE PRIORITY DATE OF YOUR CASE SHOULD BE COMPARED TO THE CURRENT VISA BULLETIN; IF YOUR PRIORITY DATE IS BEFORE THE DATE, THEN YOU MAY BE ELIGIBLE FOR FURTHER PROCESSING IN YOUR CASE. IN FAMILY IMMIGRATION, THE PRIORITY DATE IS GENERALLY THE DATE YOUR PETITION WAS FILED WITH USCIS; FOR SOME EMPLOYMENT BASED CATEGORIES, THE PRIORITY DATE IS THE DATE YOUR LABOR CERTIFICATION APPLICATION WAS FILED WITH THE DEPARTMENT OF LABOR. THIS DOES NOT APPLY TO IMMEDIATE RELATIVE PETITIONS, SUCH AS SPOUSES OR MINOR CHILDREN OF U.S. CITIZENS.