A note posted to findmadeleine.com this weekend reads: "Thank you to everyone who has stayed with us during the past three years – hoping, praying and supporting our efforts to find Madeleine and bring her home. We know we couldn't have achieved as much as we have without this help.
"Milestones and anniversaries are never easy, but the work to find our little Madeleine will continue regardless, with the same determination and tenacity as it always has and for as long as it takes.
"It might be three years without Madeleine but it certainly doesn't feel like we're at the end of the line – far from it.
"Madeleine. Still missing, still missed, still looking!"
Madeleine was nine days shy of her 4th birthday when she went missing from a rented vacation bungalow in Praia da Luz, Portugal, on May 3, 2007. Her parents said they left Madeleine and her 2-year-old twin siblings alone in the unlocked unit while they ate dinner at a tapas bar about 130 yards away.
A lengthy investigation and extensive worldwide media coverage have not led to an arrest in the case. The parents were said to be suspects at one time, but British newspapers later apologized for suggesting they might have been involved.
This past November, police in the U.K. released age-enhanced images of what Madeleine might look like at age 6.
Reporting by SIMON PERRY