Wednesday, August 17, 2011

Official Google Blog

Official Google Blog


Building a healthier, greener Google

Posted: 17 Aug 2011 09:36 AM PDT

(Cross-posted on the Green blog)

When it comes to greening our office buildings, we apply the same focus that we use for any of our products: put the user first. We want to create the healthiest work environments possible where Googlers can thrive and innovate. From concept through design, construction and operations, we create buildings that function like living and breathing systems by optimizing access to nature, clean air and daylight.



Since I arrived at Google in 2006, I've been part of a team working to create life-sustaining buildings that support the health and productivity of Googlers. We avoid materials that contain volatile organic compounds (VOCs) and other known toxins that may harm human health, so Googlers don't have to worry about the air they're breathing or the toxicity of the furniture, carpet or other materials in their workspaces. We also use dual stage air filtration systems to eliminate particulates and remaining VOCs, which further improves indoor air quality.

Since building materials don't have ingredient labels, we're pushing the industry to adopt product transparency practices that will lead to real market transformation. In North America, we purchase materials free of the Living Building Challenge Red List Materials and EPA Chemicals of Concern, and through the Pharos Project we ask our suppliers to meet strict transparency requirements.

We also strive to shrink our environmental footprint by investing in the most efficient heating, cooling and lighting systems. Throughout many of our offices, we've performed energy and water audits and implemented conservation measures to develop best practices that are applied to our offices worldwide. To the extent possible, we seek out renewable sources for the energy that we do use. One of the earliest projects I worked on at Google involved installing the first solar panels on campus back in 2007. They have the capacity to produce 1.6 megawatts of clean, renewable electricity for us, which supplies about 30 percent of our peak energy use on the buildings they cover.

With a little healthy competition, we've gotten Google's offices around the world involved in greening our operations. Our internal Sustainable Pursuit program allows teams to earn points based on their office's green performance—whether it's through green cleaning programs, water efficiency or innovative waste management strategies. We use Google Apps to help us track progress toward our goals—which meet or exceed the U.S. Green Building Council's LEED standards—and share what we've learned among our global facilities teams.

We're proud of our latest LEED Platinum achievement for the interior renovation of an office building at the Googleplex. While we have other LEED Platinum buildings in our portfolio, it's a first for our headquarters and a first for the City of Mountain View. The interior renovation was designed by Boora Architects and built by XL Construction, using healthy building materials and practices. In fact, we now have more than 4.5 million square feet of building space around the world on deck to earn LEED Certification.

Looking ahead, our team will have many more opportunities to redefine how we green our buildings and workspaces. It's a win for Googlers, our business and the environment.

The evolution of sitelinks: expanded and improved

Posted: 16 Aug 2011 10:23 AM PDT

(Cross-posted on the Inside Search blog)

When you're searching, you often have a specific task in mind, like figuring out which exhibits are showing at a nearby museum. Despite this narrow goal, people often start with a broad query, like [metropolitan museum of art], with no mention of exhibits. For these searches, the first result may include a list of links to specific sections of the site, which are called "sitelinks." Today, we're launching several improvements to sitelinks, including the way they look and are organized in search results.

Sitelinks before today's changes

Sitelinks have been around for a while, but when we first launched them years ago, they were much more limited—a single row of just four links:


It turns out that sitelinks are quite useful because they can help predict which sections of the site you want to visit. Even if you didn't specify your task in the query, sitelinks help you quickly navigate to the most relevant part of the site, which is particularly handy for large and complex websites. Sitelinks can also give you a good overview of a website's content, and let webmasters expose areas of the site that visitors may not know about.

As it became clear how valuable sitelinks were, we continued to improve their appearance and quality. We rearranged them into a column of links to make them easier to read. We doubled the number of links, creating direct access to more of the site. We started showing sitelinks for more results and we continuously made improvements to the algorithms that generate and rank the links. With each of these changes, people used sitelinks more and more.

That brings us to today's launch. Sitelinks will now be full-size links with a URL and one line of snippet text—similar to regular results—making it even easier to find the section of the site you want. We're also increasing the maximum number of sitelinks per query from eight to 12.

Improved sitelinks with URLs and snippet text

In addition, we're making a significant improvement to our algorithms by combining sitelink ranking with regular result ranking to yield a higher-quality list of links. This reduces link duplication and creates a better organized search results page. Now, all results from the top-ranked site will be nested within the first result as sitelinks, and all results from other sites will appear below them. The number of sitelinks will also vary based on your query—for example, [museum of art nyc] shows more sitelinks than [the met] because we're more certain you want results from www.metmuseum.org.

These changes will be rolling out globally over the next few days in all supported languages to anyone using a modern browser, such as Chrome, Firefox or IE 7 and above. We hope these changes make it easier and faster for you to reach the information you need.

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