Bigmouthmedia, the award-winning Search Engine Marketing company, has been selected to drive internet traffic to the National Express website. In an ever-increasing online marketplace, National Express hope to capture their share of the potential coach travel market amongst well known travel booking heavyweights such as Expedia and Lastminute.com. Kevin Milnes, Digital Marketing Manager at National Express, said the objective of the SEM campaign is more about perception than education. Consume.