the Act places an explicit duty on the court to consider whether there should be contact ¬ there is no presumption that this must be the case. At all times, the child's welfare and best interests drive any arrangements for contact. 7.8. Contact arrangements should be focused on, and shaped around, the child’s needs. The child’s welfare is the paramount consideration at all times and each child’s needs for contact should be individually considered. For many children, relationships with members of their family, previous carers and others are valued. For some children some form of contact may provide a positive aid to a successful placement with a new family, but all concerned need to understand that the purpose of any such contact, if it is to take place, is fundamentally different from the contact that would normally be arranged between children in care and their families. 7.9. Unauthorised contact will continue to be a challenge for children, their birth and adoptive parents and social workers alike. A new, and very real, challenge comes when this contact is via the internet, for example, social networks, Smart Phones and hand held gaming devises which have wireless connectivity. Social networking is fast becoming the preferred method of communication for children and adults alike. It is important that social workers help children, birth and adoptive parents to understand the implications of disclosing personal information on social networking sites, and the harm unauthorised or unmediated contact can have. Agencies should provide help and support in such cases. 7.10. Arrangements which tend to have the best chance of success are those which are mutually agreed between the birth family, relatives and others and the adopters, and have the details and expectations set out