This is part of a regular series of posts on search experience updates that runs weekly. Look for the label This week in search and subscribe to the series. - Ed.

From Google Squared enhancements to search becoming more social, this week brought a slew of exciting and (we hope) useful search feature releases:

Social Search
Sometimes, there might be relevant content on the web from people in your social circle. For example, learning what your friend thinks about the latest gadget or exotic travel location (e.g. in his or her blog) can help enhance your search experience. Until recently, there was no easy way to find this type of content published by your friends. Last October, we launched Social Search in Google labs to help solve this problem.

After a large number of users opted in and tried out the feature, Social Search has graduated and is available in beta for all signed-in users on in English. We also added this feature to Google Images and gave you a way to visualize your social circle. To learn more about Social Search and how to get better social search results check out this post or this video.

Google Squared single item landing page
Last year we launched Google Squared, an experimental search tool that collects facts from the web and presents them in an organized collection, similar to a spreadsheet. For categorical searches like [us presidents] or [dog breeds], Google Squared produces the type of extracted facts you might be interested in, and presents them in a meaningful way. Starting this week, Google Squared has a new design to better handle queries looking for a single thing, like a specific president or a particular breed of dog. The page is now easier to read and includes multiple images, and you can still add, remove or change the type of facts that are visible.

Example searches: [barack obama] and [boston terrier]

Better labels for Time/LIFE images
In late 2008, we worked with Time/LIFE to digitize several million archival images never been seen before, and made them available in Image Search. At that time, many images in the collection had descriptions and labels and were easy to search for. But some had less descriptive information, making them more difficult to find. Now it's possible for knowledgeable users to label images and enrich the collection. Over time, we hope the Google community will make the quality of image search better than ever before.

Example: [Cincinnati baseball]. Note the "labels" in the bottom righthand corner.

We hope you enjoy the variety of new features this week.