Abstract: Users of an electronic marketplace may be provided with an interface to suggest associating one or more tag identifiers, such as a hashtag identifier, with items that are offered for sale. Records associating the suggested tag identifiers and items for sale may be stored, and searched by other users, in order to provide purchase recommendations, which may not otherwise be available using product-descriptive searches. For example, tag identifiers may be used to associate products and/or services with events, such as a particular birthday or anniversary, and users can easily search for items based on intuitive tag identifiers, such as #8thbirthday, #10thanniversary, #firsttimedad, etc. The associations between the items and the tag identifiers may be dynamically updated based on various factors.