If your case is pending with immigration, press the link below to go to the USCIS case status webpage.  Enter your receipt number and hit enter to get the case status:

USCIS Case Status

If you wish to check on the status of a J-1 two year home residency waiver application filed with the Department of State, press the link below.  Enter your case number twice, and press enter:

J-1 Visa Status