38. An information processing apparatus, comprising: a broadcast text information receiving unit that receives broadcast text information transmitted from a broadcasting station; a keyword extraction unit that extracts keywords from the broadcast text information based on a keyword extraction database; an information search unit that searches for the extracted keywords using a search engine and acquires articles related to the keywords, the information search unit acquiring from the search engine a search keyword list containing search keywords searched by the search engine and rank information associated with the search keyword list; and an external display device connection control unit that performs connection control with an external display device and outputs the keywords, a search result for the keywords, and articles related to the keywords to the external display device, wherein the search engine represents a website that provides a keyword search service and a directory search service so that a user uses the search engine to search for information available through Internet.
38. An information processing apparatus, comprising: a broadcast text information receiving unit that receives broadcast text information transmitted from a broadcasting station; a keyword extraction unit that extracts keywords from the broadcast text information based on a keyword extraction database; an information search unit that searches for the extracted keywords using a search engine and acquires articles related to the keywords, the information search unit acquiring from the search engine a search keyword list containing search keywords searched by the search engine and rank information associated with the search keyword list; and an external display device connection control unit that performs connection control with an external display device and outputs the keywords, a search result for the keywords, and articles related to the keywords to the external display device, wherein the search engine represents a website that provides a keyword search service and a directory search service so that a user uses the search engine to search for information available through Internet. 42. The information processing apparatus according to claim 38 , further comprising a keyword synchronization unit that transmits the extracted keywords to at least one information processing apparatus and performs keyword synchronization with the at least one information processing apparatus.