9. A computing system for performing actions for users based on collections of information specified via spoken information, the system comprising: a component configured to receive a spoken voice message from a user during a telephone call; a component configured to automatically analyze the received voice message to identify a spoken indication of one of multiple predefined collections of information for the user that are each specific to a distinct associated topic, and to identify a spoken indication of each of one or more information items to be added to the indicated one predefined information collection; a component configured to automatically add generated textual representations of the identified one or more information items to a stored copy of the identified predefined information collection for the user, the stored copy further including one or more other generated textual representations of one or more other identified information items added based on one or more prior spoken voice messages from the user during one or more prior telephone calls; and a component configured to, after obtaining an indication from the user of one or more actions to take for the identified predefined information collection, wherein at least one of the actions includes providing determined information to the user that is based at least in part on the textual representations added to the identified predefined information collection, automatically perform the one or more actions so as to provide the determined information to the user; and a component configured to obtain information from one or more partner services related to the user acquiring from the one or more partner services at least one of the one or more products to which the identified one or more information items correspond, wherein the obtained information includes price bids by multiple partner services, and wherein the determined information that is provided to the user includes the obtained information.
9. A computing system for performing actions for users based on collections of information specified via spoken information, the system comprising: a component configured to receive a spoken voice message from a user during a telephone call; a component configured to automatically analyze the received voice message to identify a spoken indication of one of multiple predefined collections of information for the user that are each specific to a distinct associated topic, and to identify a spoken indication of each of one or more information items to be added to the indicated one predefined information collection; a component configured to automatically add generated textual representations of the identified one or more information items to a stored copy of the identified predefined information collection for the user, the stored copy further including one or more other generated textual representations of one or more other identified information items added based on one or more prior spoken voice messages from the user during one or more prior telephone calls; and a component configured to, after obtaining an indication from the user of one or more actions to take for the identified predefined information collection, wherein at least one of the actions includes providing determined information to the user that is based at least in part on the textual representations added to the identified predefined information collection, automatically perform the one or more actions so as to provide the determined information to the user; and a component configured to obtain information from one or more partner services related to the user acquiring from the one or more partner services at least one of the one or more products to which the identified one or more information items correspond, wherein the obtained information includes price bids by multiple partner services, and wherein the determined information that is provided to the user includes the obtained information. 11. The system of claim 9 wherein the identified predefined information collection is a list of products for possible future purchase, and wherein the identified one or more information items each correspond to one or more products.