The Queen has been incorporated into the homepage logo of internet search engine Google to mark her visit to the company's London HQ. The "Google doodle", which changes periodically to mark national holidays or anniversaries of major events, features a profile of the monarch and a crown. The Queen, accompanied by the Duke of Edinburgh, was introduced to software engineers, senior managers, and a host of other staff that keep the world's most popular internet search site running. And when the royal party were shown a YouTube clip of a baby with an infectious laugh they were reduced to giggles by the footage. Nikesh Arora, president of Google Europe, Middle East and Africa, who took the Queen around his company's UK headquarters in Victoria, London, said: "She did seem very very interested in everything going on. "She has used YouTube and has her own Royal Channel and understands what our products are about." The Queen and Duke also met 16 schoolchildren, all winners in a competition to design new doodles for Google. The Royal Family has embraced technological changes over the decades and last Christmas launched the first Royal Channel on YouTube. The channel has 54 royal videos and has been viewed 1.6 million times by internet users. Later at a reception the royal couple will chat to members of the YouTube community whose videos have proved popular with internet users.