Hissingsid - 11:26 am on Oct 10, 2011 (gmt 0)
Just thinking aloud again.
For some two word terms for example <<widget service>> I'm seeing sites that are strong semantic webs for "widget" that include "widget service" in them have been given a boost. Those that are strong for "service" but not so strong for widget have lower rankings for this term than previous.
This does not apply for all terms.
This could be for all sorts of reasons but perhaps most likely are:
Perhaps Panda has a large element of semantic webs analysis in the algorithm and sites that are strong for the general theme of a search give a stronger signal into that analysis than ones that are strong for the specific term.
Sites that are strong for the general topic provide better user satisfaction data. Perhaps because users stick around and explore the site more than one that only answers one specific question.
Alternatively if semantic web analysis is involved I wonder if Google is using a technique that summarises semantic analysis into vectors and errors in the way the analysis is conducted and the vectors stored results in the "false positives" we are seeing in SERPS.