18. The method of claim 17 , where identifying the set of one or more addresses includes: presenting a hierarchical directory of category listings to a user, each of the category listings including an associated list of addresses, receiving one or more selections of the category listings from the user, and using the associated list of addresses corresponding to each of the one or more selections of the category listings for the set of one or more addresses.
17. The method of claim 14 , where obtaining the set of one or more addresses includes: identifying the set of one or more addresses from a category of information.