Google search functions are getting increasingly social. This month, Google added image searches to its Social Search experiment, allowing for ever more personal searches. Soon, your image search results will include related images and web content from your friends and online contacts.

For instance, say you’re thinking of getting a dog. You’ve got a small apartment, so you want a small dog. You do a Google search for “small dog breeds” and Google turns up all the usual, expected results, including articles by pet experts, pet stores, dog trainers and the like. However, you’ll also find images and web content posted by your friends. If a friend of yours has written an article or blogged about Chihuahuas, that article or blog page will appear under a special heading called “Results from your Social Circle.”

Now that Social Search has been added to Google Images, you’ll see results there as well. For instance, if a photographer friend of yours has posted photos he’s taken of a client’s Pomeranians on his professional website or a neighbor has posted pictures of her miniature dachshunds on her Facebook page or on a web photo sharing site such as Flickr or Picasa Web Albums, these images will appear under the “Results from you Social Circle” heading as well.

The screenshot of images also will include links titled “My Social Circle” and “My Social Content.” Click and you’ll be taken to one of two new Google interfaces. Clicking on “My Social Circle” shows your extended network of social contacts. “My Social Content” takes you to a list of your public pages that may appear in your friends and contacts’ social results.

Thus far, Goggle’s Social Search functions are available to everyone in beta on google.com. Social Search for images and the two new interfaces launched only recently, so it may take several days for your connections and content to update. Currently, they’re available in English only to all signed-in users.