Google Personalized Search rolled out yesterday revealing a change as significant as Universal Search in 2007. Unlike the major change that brought images, video thumbnails, news and blog posts within search results for all, the Google plus Your World changes are only visibile when logged into Google.
There are many stories to be told here, from Google as a social network to the tit for tat statements Google and Twitter are making. From an online marketing perspective and more specifically, search marketing, the introduction of more Google features only available when logged in will arguably increase the number of searches done when user search terms are encrypted and not available for website owners in their web analytics. The “Unknown” category of keyword referrer for this blog has risen dramatically, which isn’t helpful for future content refinement or optimization.