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Re:Ask HN: alternatives to Flippa? by willwagner on Wednesday August 11, 2010 @01:41PM (#1595392)
Xmarks also has a similar site feature based on our bookmark data:

http://www.xmarks.com/site/flippa.com

It also categorizes sites so you can look up the top rated sites for an individual topic:

http://www.xmarks.com/topic/web_sites_for_sale

Re:Ask HN: alternatives to Flippa? by CorrectTheory on Thursday August 12, 2010 @10:19AM (#1598140)
I think http://www.similarsitesearch.com/ is the best search engine for finding similar websites. It's hard to distinguish the differences in search engines for finding similar sites for popular websites like flippa.com. I saw all of them returning the similar results except that similarsitesearch.com gives more results than others. similarsitesearch.com generates the best result for smaller websites like moreofit.com.

BTW I think moreofit.com has very good UI. Better than any other similar ones I have seen.

Re:Ask HN: alternatives to Flippa? by photon_off on Thursday August 12, 2010 @10:43PM (#1599902)
I am very impressed with Xmarks. I'm not sure why I never found out about it until now. Your similarity results are definitely "good enough" in the high saturated categories. The "topics" aspect is pretty awesome.

Might I ask: How did you populate the categories? Do you back reference domains with a directory?