Have you ever checked out GSA's random url's it inserts into articles?

http://%anchor_text%.com/
http://www.%anchor_text%.com/
http://answers.yahoo.com/search/search_result?p=%anchor_text%&submit-go=Search+Y!+Answers
http://data.gov.uk/data/search?q=%anchor_text%
http://dict.leo.org/?search=%anchor_text%
http://en.search.wordpress.com/?q=%anchor_text%
http://mondediplo.com/spip.php?page=recherche&recherche=%anchor_text%
http://pinterest.com/search/pins/?q=%anchor_text%
http://search.about.com/?q=%anchor_text%
http://search.huffingtonpost.com/search?q=%anchor_text%&s_it=header_form_v1
http://search.un.org/search?ie=utf8&site=un_org&output=xml_no_dtd&client=UN_Website_en&num=10&lr=lang_en&proxystylesheet=UN_Website_en&oe=utf8&q=%anchor_text%&Submit=Go
http://search.usa.gov/search?query=%anchor_text%
http://thesaurus.com/browse/%anchor_text%
http://wordpress.org/search/%anchor_text%
http://www.%anchor_text%.com/
http://www.adobe.com/cfusion/search/index.cfm?term=&%anchor_text%&loc=en_us&siteSection=home
http://www.alexa.com/search?q=%anchor_text%&r=topsites_index&p=bigtop
http://www.answers.com/topic/%anchor_text%
http://www.bbc.co.uk/search/?q=%anchor_text%
http://www.bing.com/search?q=%anchor_text%&form=MSNNWS&mkt=en-us&pq=%anchor_text%
http://www.britannica.com/search?query=%anchor_text%
http://www.dailymail.co.uk/home/search.html?sel=site&searchPhrase=%anchor_text%
http://www.dict.cc/?s=%anchor_text%
http://www.dict.cc/englisch-deutsch/%anchor_text%.html
http://www.ehow.com/search.html?s=%anchor_text%
http://www.encyclopedia.com/searchresults.aspx?q=%anchor_text%
http://www.google.co.uk/search?hl=en&gl=us&tbm=nws&q=%anchor_text%&gs_l=news
http://www.google.com/search?q=%anchor_text%&btnI=lucky
http://www.google.de/search?q=%anchor_text%
http://www.guardian.co.uk/search?q=%anchor_text%
http://www.reddit.com/r/howto/search?q=%anchor_text%
http://www.squidoo.com/search/results?q=%anchor_text%
http://www.thefreedictionary.com/%anchor_text%
http://www.tumblr.com/tagged/%anchor_text%
http://www.wikipedia.org/wiki/%anchor_text%
http://www.wired.com/search?query=%anchor_text%
http://www.wonderhowto.com/search/%anchor_text%/
https://www.flickr.com/search/?q=%anchor_text%
https://www.google.com/search?hl=en&gl=us&tbm=nws&q=%anchor_text%
https://www.google.com/search?hl=en&gl=us&tbm=nws&q=%anchor_text%&btnI=lucky
https://www.gov.uk/search?q=%anchor_text%
https://www.vocabulary.com/dictionary/%anchor_text%
http://en.wiktionary.org/wiki/%anchor_text%
http://statigr.am/tag/%anchor_text%
http://photobucket.com/images/%anchor_text%
http://browse.deviantart.com/?q=%anchor_text%
http://browse.deviantart.com/?qh=&section=&global=1&q=%anchor_text%
http://www.twitpic.com/tag/%anchor_text%
http://imageshack.us/photos/%anchor_text%
http://imgur.com/hot?q=%anchor_text%
http://www.sharkbayte.com/keyword/%anchor_text%
http://photo.net/gallery/tag-search/search?query_string=%anchor_text%
http://search-engine-ranker.gsa-online.de/#GSA Search Engine Ranker,GSA SER,Search Engine Ranker,SER,SEO,Website Submission,Search Engine Optimization
http://www.majesticseo.com/#SEO,Search Engine Optimization
http://www.mattcutts.com/#SEO,Search Engine Optimization