U.S Department of State – Apply for a U.S passport, renew by mail, report lost or stolen passports, and change information.
Passport Visa Express.com – Expedited passport services.
U.S Passport Service Guide – Learn how to expedite passport fast for any emergency in as little as 24 hours.
Passport Visas Travelers Guide – Passport Expedition information.
Gov.uk – Apply for, renew or update a UK passport online.