Related Clues:

• Business abbr.
• Assoc.
• See 22-Across
• League: Abbr.
• Org.
• It follows a dot in many on-line addresses
• Professional org.
• Part of NATO: Abbr.
• See 24-Across
• Ending of many Web site names
• Part of N.C.A.A.: Abbr.
• Part of P.T.A.: Abbr.
• Part of some E-mail addresses
• Like some profs.
• Assn.