In the search engine optimization business there are several recurrent discussions with new client prospects. The most common one by far is around why conversion reports should be used for search metrics rather than traditional ranking reports. Jaws drop when people hear that two different Google users may see different search results for the same query made at the same moment in time. The reasons vary – searches made at google.com vs. google.it, data centers may not be synchronized, etc.
Two years ago, Google introduced Google Personalized Results. Google provides special results, just for me, based on my search history, as long as I am logged into a Google service. In November, Google added SearchWiki, a facility for a user to annotate and customize their search results.
