Proven SEO Techniques 5

41. The method of claim 1, wherein the one or more types of history data includes information relating to a prior ranking history of documents; and wherein the generating a score includes: determining a prior ranking history of the document, and scoring the document based, at least in part, on the prior ranking history of the document.

42. The method of claim 41, wherein the scoring the document includes: determining a quantity or rate that the document moves in rankings over a time period, and scoring the document based, at least in part, on the quantity or rate that the document moves in the rankings.

43. The method of claim 41, wherein the prior ranking history is based on at least one of a number of queries for which the document is selected as a search result over time, a rate at which the document is selected as a search result over time, seasonality, burstiness, and changes in scores over time for a URL-query pair.

44. The method of claim 41, wherein the determining a prior ranking history of the document includes monitoring a rank of the document over time for spikes in the rank.

45. The method of claim 1, wherein the one or more types of history data includes information relating to user maintained or generated data; and wherein the generating a score includes: determining whether user maintained or generated data indicates that the document is of interest to a user, and scoring the document based, at least in part, on whether the user maintained or generated data indicates that the document is of interest to a user.

46. The method of claim 45, wherein the user maintained or generated data relates to at least one of favorites lists, bookmarks, temp files, and cache files associated with one or a plurality of users.

47. The method of claim 45, wherein the scoring the document includes: analyzing the user maintained or generated data over time to identify at least one of trends to add or remove the document, a rate at which the document is added to or removed from the user maintained or generated data, and whether the document is added to, deleted from, or accessed through the user maintained or generated data, and scoring the document based, at least in part, on a result of the analyzing.

48. The method of claim 1, wherein the one or more types of history data includes information relating to growth profiles of anchor text; and wherein the generating a score includes: determining a growth profile of anchor text associated with one or more links to the document, and scoring the document based, at least in part, on the growth profile of anchor text associated with one or more links to the document.

49. The method of claim 1, wherein the one or more types of history data includes information relating to linkage of independent peers; and wherein the generating a score includes: determining a growth in a number of independent peers that include the document, and scoring the document based, at least in part, on the number of independent peers.

50. The method of claim 1, wherein the one or more types of history data includes information relating to document topics; and wherein the generating a score includes: performing topic extraction relating to the document, monitoring a topic of the document for changes over time, and scoring the document based, at least in part, on changes to the topic of the document.