Abstract: Architecture that enables the realtime selection and application of advertisements to search results of a user based on the user intent. The architecture enables information exchange between the search engine and advertisement frameworks to provide significant input for realtime advertising decisions. Each query processed in the search engine is analyzed and classified for user intent. Realtime intent classification enables merchants to choose to place or not to place advertisements based on a given query from the end user, with a much higher degree of relevance. This also exposes the ability to provide dynamic pricing for advertisement monetization based on realtime query signals.