Internet advertising continues to take two forms. There is niche advertising for products and services for specialist sites, with a community with demonstrable potential interest in the products and services provided by the advertiser. Secondly transaction related advertising continues to grow. Greater access combined with penetration of ownership of access devices has helped. Transaction security has improved exponentially encouraging and increasing confidence in the integrity of on line transactions. Increased availability of product and services and the immediacy of price discovery and transparency have encouraged the growth of consumer advertising where a spontaneous and immediate decision is likely.