Google has flipped the switch on its most fundamental integration yet of its search system and Google+, fusing the social platform with its core search service.
Over the next few days, Google search users who are logged into their Google profile will be able to turn on a feature called "Search plus Your World". The functionality skews search results in favour of content from Google+, giving added priority to photos, posts, pages and profiles from the service.
The additional personal touches mark another step toward one of Google's most ambitious goals. The internet search leader eventually hopes to know enough about each of its users so it can tailor its results to fit the unique interests of each person looking for something.
Facebook and Twitter pose a threat to Google because they don't allow Google's search engine to log the avalanche of photos, links and observations tumbling through those services. That's troublesome to Google because its search engine could become less useful if its system can't analyse what people are signalling is important to them so those preferences can be factoring into the results.
Turning off the personal results permanently will require changing a setting in Google's personal preferences. The personal results can also be excluded on a search-by-search basis by clicking on an icon of the globe on the results page (the personal results will be denoted by a button featuring a human's silhouette).
If the new formula works as Google expects, the search results will include pertinent information culled from the requester's Google+ account. For instance, a query about the San Francisco 49ers might include links and comments made about the football team by other people in one of the social circles on the user's Plus account. A search request that includes the name of a dog owned by the user or a friend might turn up photos of the pet that have been posted on Google+ and Picasa.
While signed into Google, search results and private content will be protected with SSL (secure sockets layer) encryption by default, as web search and Gmail are.
Personal results will be marked as "public", "limited" or "only you", and it will be easy to toggle between web only results or the combined results by clicking on icons of a human (for personal) or a globe (for, well, global results) near the top of the search page.
"This is going to open up a whole new avenue in search," said Ben Gomes, a Google fellow.
Google isn't the first to do this. Microsoft's Bing search engine has been mining some of the preferences and other information shared on Facebook since May. But Google's emphasis on more personal results figures to attract more attention because its search engine is so dominant. It handles about two thirds of the internet search requests made in the US while Bing processes less than one third, including the activity that it comes through a partnership with Yahoo.
Facebook, though, has greater insights into personal tastes. That's because its nearly eight-year-old social network boasts more than 800 million users who share more than 1.5 billion photos alone each week. In October, Google said that Google+ had more than 40 million users. Google hasn't updated the information since then, although some external studies have estimated Plus began the new year with 60 million to 70 million users.
Some of Google's changes may help prod more people into joining Google+. As part of this expansion, the profile pictures of Plus account-holders will appear in the drop-down suggestions on Google's search box. In another twist, searches on general topics such as "music" and "sports", will generate suggestions on people, companies and places that have Plus accounts.
While Google is hoping the addition of more personal results will make its search engine even more useful, the changes also could spook some people as they realise how much information is being compiled about them. Google tried to minimise privacy concerns by recently switching to technology that encrypts all its search results to protect the information from slipping out.
Previous privacy missteps by both Google and Facebook resulted in both companies entering into settlements with the US Federal Trade Commission (FTC). The FTC agreements require Google and Facebook to submit to external audits of their privacy practices every other year.
Elinor Mills contributed to this article.
Via ZDNet UK