29. The one or more non-transitory machine-readable media of claim 20 , wherein: the new page contains the URLs corresponding to the subset of linking webpages; and each linking webpage of said subset is from a different domain.
20. One or more non-transitory machine-readable media storing instructions which, when executed by one or more processors, cause: receiving, from a process associated with a particular webpage, a request to display a clickable item on said particular webpage; providing, to said process, said clickable item to be displayed on said particular webpage; after providing said clickable item to said process, receiving an indication that the clickable item has been selected; and in response to said indication, providing a new page to be displayed that contains at least one of (a) URLs corresponding to a subset of linking webpages that each contains a link to said particular webpage, wherein the linking webpages are determined to contain a link to said particular webpage by an automated web crawler or (b) a subset of tags that have been associated with said particular webpage by a plurality of users who have visited said particular webpage, wherein each tag is one or more words and is created, by a user of the plurality of users who has visited said particular webpage to describe content of said particular webpage subsequent to the creation of said particular webpage.