21. A method comprising: identifying one or more spammer targeted keywords related to keywords used in search queries, the identifying being based in part on a popularity of the one or more spammer targeted keywords amongst advertisers, wherein the popularity of the one or more spammer targeted keywords amongst the advertisers is based in part on a number of bids provided by the advertisers, and wherein the one or more spammer targeted keywords is associated with a syndication business, the syndication business including at least a publisher, an advertiser, and a syndicator; implementing a search based in part on the one or more spammer targeted keywords; accessing, by one or more processors, individual uniform resource locators (URLs) of a set of URLs that comprise a search result to the search; recording one or more redirection URLs associated with the set of URLs based in part on the accessing; determining that the one or more redirection URLs redirect to a known spammer domain, the one or more redirection URLs including one or more associated URL domains; classifying, based in part on the recording and the determining, one or more URLs of the set of URLs as one or more classified spam URLs; updating a list of known spam domains to include the one or more associated URL domains; and determining that the one or more associated URL domains are associated with a spam syndication program, the spam syndication program including at least a spam publisher associated with a doorway page for redirecting a browser to a redirection domain associated with the spam publisher.
21. A method comprising: identifying one or more spammer targeted keywords related to keywords used in search queries, the identifying being based in part on a popularity of the one or more spammer targeted keywords amongst advertisers, wherein the popularity of the one or more spammer targeted keywords amongst the advertisers is based in part on a number of bids provided by the advertisers, and wherein the one or more spammer targeted keywords is associated with a syndication business, the syndication business including at least a publisher, an advertiser, and a syndicator; implementing a search based in part on the one or more spammer targeted keywords; accessing, by one or more processors, individual uniform resource locators (URLs) of a set of URLs that comprise a search result to the search; recording one or more redirection URLs associated with the set of URLs based in part on the accessing; determining that the one or more redirection URLs redirect to a known spammer domain, the one or more redirection URLs including one or more associated URL domains; classifying, based in part on the recording and the determining, one or more URLs of the set of URLs as one or more classified spam URLs; updating a list of known spam domains to include the one or more associated URL domains; and determining that the one or more associated URL domains are associated with a spam syndication program, the spam syndication program including at least a spam publisher associated with a doorway page for redirecting a browser to a redirection domain associated with the spam publisher. 24. The method of claim 21 , further comprising receiving information associated with the number of bids provided by the advertisers from the syndicator.