TheOptimizationIdiot - 8:25 pm on Mar 5, 2013 (gmt 0)

...the data associated with the features of one of the links including at least one of a font size of anchor text associated with the link, a position of the link within a source document, a position of the link in a list, a font color associated with the link, attributes of the link, a number of words in the anchor text associated with the link, actual words in the anchor text associated with the link, a determination of commerciality of the anchor text associated with the link, a type of the link, a context of words before or after the link, a topical cluster with which the anchor text of the link is associated... 18. The one or more server devices of claim 16, where the data associated with the features of the one of the links includes at least two of: the font size of anchor text associated with the link, the position of the link within a source document, the position of the link in a list, the font color associated with the link, the attributes of the link, the number of words in the anchor text associated with the link, the actual words in the anchor text associated with the link, the determination of commerciality of the anchor text associated with the link, the type of the link, the context of words before or after the link, the topical cluster with which the anchor text of the link is associated, whether the link leads to a target document on a same host or domain, or whether an address associated with the link embeds another address. [patft.uspto.gov...]

The use of color, tagging, etc. is only in 4 patents I'm remembering so far. Maybe they just throw it all out and applied for these patents just to have them, but I doubt it.