Mothering Sunday is also known as Mothering Sunday because it always falls on a Sunday.
In the United Kingdom they will celebrate Mother's Day 2010 on 14th March.
In the USA they wait a month and so the date for Mother's Day is May 9th.
Mother's day is seen by many as a cynical attempt to sell products but the festival has a noble tradition going back to pagan times. Both the Greeks and Romans had springtime festivals in honour of 'mother' gods. The ancient celts also had a festival to worship the goddess Brigid with a spring Mother's Day. Therefore, buying gifts and pampering mothers on mothers day is a noble tradition.