Mike Grehan is founder and chief executive officer of Smart Interactive Ltd., now a wholly owned European division of WebSourced, Inc., the world's largest search engine marketing company. He is recognized as one of the foremost experts in the field of search marketing and is the author of multiple books and white papers. His best selling second edition of Search Engine Marketing: The essential best practice guide, received more plaudits than any other on the subject from the industry's leading players. In 2004 he was voted one of the UK's top 100 influential people in internet marketing during the previous decade, in a poll of online marketer, e-Consultancy's 22,000 UK members. Mike is a much sought after speaker and travels extensively across Europe and North America speaking at major conferences such as Search Engine Strategies, Ad:tech and many others. His own newsletter has attracted more than 17,000 subscribers. Mike played a key role as founding member and promoter of the global Search Marketing Association (SMA) movement and sits on the board of SMA-UK. He has also recently been appointed as a ClickZ Expert search marketing columnist.