14. An article of manufacture comprising: a computer readable storage medium embodied with a computer program, which when executed by a processing system, cause the processing system to perform a method comprising: receiving an incoming message containing a text query and a query type indicator, the text query and the query type indicator being distinct pieces of information specified by a user on a mobile device, the text query including a user-specified keyword for a search, the keyword being at least one of an event, an entity, a product, a term, a stock quotation, a particular contact, a particular location, and a mathematical expression, and the query type indicator identifying at least one category of content to be searched based on the text query including the user-specified keyword; extracting the text query from the incoming message, the incoming message being any one of a Short Messaging Service (SMS) message, a Multimedia Message Service (MMS) message, and an email message; determining at least one of a plurality of query types for the query based on the query type indicator; obtaining a result of a search using the at least one of the plurality of query types, the result of the search being based on a search of content for the user-specified keyword; and creating an outgoing message with the result of the search for delivery to the mobile device.
14. An article of manufacture comprising: a computer readable storage medium embodied with a computer program, which when executed by a processing system, cause the processing system to perform a method comprising: receiving an incoming message containing a text query and a query type indicator, the text query and the query type indicator being distinct pieces of information specified by a user on a mobile device, the text query including a user-specified keyword for a search, the keyword being at least one of an event, an entity, a product, a term, a stock quotation, a particular contact, a particular location, and a mathematical expression, and the query type indicator identifying at least one category of content to be searched based on the text query including the user-specified keyword; extracting the text query from the incoming message, the incoming message being any one of a Short Messaging Service (SMS) message, a Multimedia Message Service (MMS) message, and an email message; determining at least one of a plurality of query types for the query based on the query type indicator; obtaining a result of a search using the at least one of the plurality of query types, the result of the search being based on a search of content for the user-specified keyword; and creating an outgoing message with the result of the search for delivery to the mobile device. 15. The article of manufacture of claim 14 wherein obtaining the result of the search comprises: forwarding the query to a search engine associated with the one of the plurality of query types; and receiving the result of the search from the search engine associated with the one of the plurality of query types.