Ok this is a pretty boring page so its not worth the read unless you are working with the new Amazon Store API. If you are you need to retrieve information from their site and to do so you need to know what Search Parameters are available within each Search index. Each Search must be accompanied with the Index (category.. dvd ..music) and Parameter you are using to search for like : Manufacturer, Artist Keywords and so on. As you will see the very first one ALL allows the search parameter Keywords so if you can only search in one way then use the SearchIndex name and Keywords="something" to return your search information. Here is the index for AMAZON.COM and it is current as of API Version 2009-03-31 . If you are using DE, JP, UK or CA you will have other SearchIndexes. =============================================== SEARCH INDEXES AND CORRESPONDING PARAMETERS "All" indexes can respond to at least the Param "Keywords". ALL Keywords -------- SearchIndex: Apparel Brand BrowseNode Condition ItemPage Keywords Manufacturer MaximumPrice MerchantId MinimumPrice Sort State TextStream Title -------- SearchIndex: Automotive Brand BrowseNode Condition ItemPage Keywords Manufacturer MaximumPrice MerchantId MinimumPrice Sort State TextStream Title -------- SearchIndex: Baby Brand BrowseNode Condition ItemPage Keywords Manufacturer MaximumPrice MerchantId MinimumPrice Sort State Title -------- SearchIndex: Beauty Brand BrowseNode Condition ItemPage Keywords Manufacturer MaximumPrice MerchantId MinimumPrice Sort Title -------- SearchIndex: Blended Keywords -------- SearchIndex: Books Author BrowseNode Condition ItemPage Keywords MaximumPrice MerchantId MinimumPrice Power Publisher Sort State TextStream Title SearchIndex: Classical Artist Author Availability BrowseNode Composer Conductor Count Format ItemPage Keywords Magazines MusicLabel Orchestra Performer PostalCode Sort State Title -------- SearchIndex: DigitalMusic Actor BrowseNode Condition Director ItemPage Keywords MaximumPrice MerchantId MinimumPrice Sort State Title -------- SearchIndex: MP3Downloads Browsenode Keyword Title -------- SearchIndex: DVD Actor AudienceRating Availability BrowseNode Count Director Format ItemPage Keywords Magazines Performer PostalCode Publisher Sort State Title -------- SearchIndex: Electronics BrowseNode Condition ItemPage Keywords Manufacturer MaximumPrice MerchantId MinimumPrice Sort State TextStream Title -------- SearchIndex: GourmetFood BrowseNode ItemPage Keywords MaximumPrice MerchantId MinimumPrice Sort State TextStream Title -------- SearchIndex: HealthPersonalCare Brand BrowseNode Condition Manufacturer MaximumPrice MerchantId MinimumPrice ItemPage Keywords Sort State Title -------- SearchIndex: HomeGarden Brand BrowseNode Condition ItemPage Keywords Manufacturer MaximumPrice MerchantId MinimumPrice Sort Title -------- SearchIndex: Industrial BrowseNode Keywords Manufacturer Title -------- SearchIndex: Jewelry BrowseNode Condition ItemPage Keywords MaximumPrice MerchantId MinimumPrice Sort State TextStream Title -------- SearchIndex: KindleStore Author BrowseNode Condition ItemPage Keywords MaximumPrice MerchantId MinimumPrice Power Publisher Sort TextStream Title -------- SearchIndex: Kitchen Brand BrowseNode Condition Manufacturer MaximumPrice MerchantId MinimumPrice ItemPage Keywords Sort State Title -------- SearchIndex: Magazines BrowseNode Condition ItemPage Keywords MaximumPrice MerchantId MinimumPrice Publisher State Sort Title -------- SearchIndex: Merchants Keywords Title BrowseNode Artist Author Actor Director AudienceRating Manufacturer MusicLabel Composer Publisher Brand Conductor City Neighborhood Orchestra TextStream -------- SearchIndex: Miscellaneous Brand BrowseNode Condition ItemPage Keywords MaximumPrice MerchantId MinimumPrice Sort State Title -------- SearchIndex: Music Artist Availability BrowseNode Count Format ItemPage Keywords Magazines MusicLabel Performer PostalCode Sort State Title -------- SearchIndex: MusicalInstruments Brand BrowseNode Condition Manufacturer MaximumPrice MerchantId MinimumPrice ItemPage Keywords Sort Title -------- SearchIndex: MusicTracks Condition ItemPage Keywords MaximumPrice MerchantId MinimumPrice Sort State -------- SearchIndex: OfficeProducts Brand BrowseNode Condition Manufacturer MaximumPrice MerchantId MinimumPrice ItemPage Keywords Sort State Title -------- SearchIndex: OutdoorLiving Brand BrowseNode Condition Manufacturer MaximumPrice MerchantId MinimumPrice ItemPage Keywords Sort State Title -------- SearchIndex: PCHardware Brand BrowseNode Condition Manufacturer MaximumPrice MerchantId MinimumPrice ItemPage Keywords Sort State Title -------- SearchIndex: PetSupplies Author Brand BrowseNode Condition Count ItemPage Keywords Manufacturer MaximumPrice MerchantId MinimumPrice Sort State Title -------- SearchIndex: Photo Brand BrowseNode Condition Manufacturer MaximumPrice MerchantId MinimumPrice ItemPage Keywords Sort State TextStream Title -------- SearchIndex: Shoes Brand BrowseNode Condition ItemPage Keywords Manufacturer MaximumPrice MerchantId MinimumPrice Sort State TextStream Title -------- SearchIndex: SilverMerchants Keywords Title BrowseNode Artist Author Actor Director AudienceRating Manufacturer MusicLabel Composer Publisher Brand Conductor City Neighborhood Orchestra TextStream -------- SearchIndex: Software Brand BrowseNode Condition Manufacturer MaximumPrice MerchantId MinimumPrice ItemPage Keywords Sort State Title -------- SearchIndex: SportingGoods Brand BrowseNode Condition ItemPage Keywords Manufacturer MaximumPrice MerchantId MinimumPrice Sort State Title -------- SearchIndex: Tools Brand BrowseNode Condition ItemPage Keywords Manufacturer MaximumPrice MerchantId MinimumPrice Sort State Title -------- SearchIndex: Toys BrowseNode Condition ItemPage Keywords MaximumPrice MerchantId MinimumPrice Sort State TextStream Title -------- SearchIndex: UnboxVideo Actor BrowseNode Condition Director ItemPage Keywords MaximumPrice MerchantId MinimumPrice MPAARating Publisher Sort State TextStream Title -------- SearchIndex: VHS Actor AudienceRating Availability BrowseNode Count Director Format ItemPage Keywords Magazines Performer PostalCode Publisher Sort State Title -------- SearchIndex: Video Actor AudienceRating Availability BrowseNode Count Director Format ItemPage Keywords Magazines Performer PostalCode Publisher Sort State Title -------- SearchIndex: VideoGames Brand BrowseNode Condition ItemPage Keywords Manufacturer MaximumPrice MerchantId MinimumPrice Sort State TextStream Title -------- SearchIndex: Watches BrowseNode Condition ItemPage Keywords MerchantId MinimumPrice Sort State TextStream Title -------- SearchIndex: Wireless BrowseNode Condition ItemPage Keywords MaximumPrice MerchantId MinimumPrice Sort State Title -------- SearchIndex: WirelessAccessories BrowseNode Condition ItemPage Keywords MaximumPrice MerchantId MinimumPrice Sort Title ==================================== This is the end of the Amazon.com API Parameter Index. It is presented in a way that should make it relatively easy to copy into an array for use in your aps. Good Luck to you heh :o)