Google is sifting through the photos and commentary on its blossoming social network so its Internet search results can include more personal information.

The additional personal touches that began to roll out Tuesday 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.

Different people should start seeing different search results more frequently now that Google Inc. is importing content from its 6-month-old Plus service, a product that the company introduced in an attempt to counter the popularity of Facebook's online hangout and Twitter's short-messaging hub. Google's main search results page also will start highlighting more content from an older online photo service called Picasa.