1. A method performed by one or more server devices, the method comprising: determining, by one or more processors associated with the one or more server devices, an update frequency that is based on how often content of a document is updated in a time period; determining, by one or more processors associated with the one or more server devices, an update amount that is based on a ratio of a quantity of new or unique pages associated with the document over a period of time versus a total quantity of pages associated with the document; generating, by one or more processors associated with the one or more server devices, a score for the document based on the determined update frequency and the determined update amount; and ranking, by one or more processors associated with the one or more server devices, the document with regard to at least one other document based, at least in part, on the score.
1. A method performed by one or more server devices, the method comprising: determining, by one or more processors associated with the one or more server devices, an update frequency that is based on how often content of a document is updated in a time period; determining, by one or more processors associated with the one or more server devices, an update amount that is based on a ratio of a quantity of new or unique pages associated with the document over a period of time versus a total quantity of pages associated with the document; generating, by one or more processors associated with the one or more server devices, a score for the document based on the determined update frequency and the determined update amount; and ranking, by one or more processors associated with the one or more server devices, the document with regard to at least one other document based, at least in part, on the score. 13. The method of claim 1 , further comprising: analyzing, over time, appearance of anchor text corresponding to links pointing to the document, and identifying a rate of increase in the appearance of the anchor text; and where generating the score for the document includes: scoring the document based on the identified rate of increase in the appearance of the anchor text.