The document discusses contextual advertising and summarizes various research reports and polls about online advertising spending trends and the contextual advertising market in Poland. It provides data on the major contextual advertising networks in Poland, including the number of users and reach of each network. The document also summarizes polls of SEM agencies and direct clients about their use of contextual advertising, including the share of budgets spent on these ads, campaign objectives, pricing models, and arguments for spending on contextual campaigns. Projections for contextual advertising spending in 2010 compared to 2009 are also presented.