Early search engines were built on an unspoken transaction — a pact between search engines and website owners — you give us your data, and we’ll send you traffic. While Google changed the game of how search engines rank content, they honored the same pact in the beginning. Publishers, who owned their own content and traditionally were fueled by subscription revenue, operated differently. Over time, they built walls around their gardens to keep visitors in and, hopefully, keep them paying.

Over the past six years, Google has crossed this divide, building walls around their content and no longer linking out to the sources that content was originally built on. Is this the inevitable evolution of search, or has Google forgotten their pact with the people’s whose backyards their garden was built on?

I don’t think there’s an easy answer to this question, but the evolution itself is undeniable. I’m going to take you through an exhaustive (yes, you may need a sandwich) journey of the ways that Google is building in-search experiences, from answer boxes to custom portals, and rerouting paths back to their own garden.

I. The Knowledge Graph

In May of 2012, Google launched the Knowledge Graph. This was Google’s first large-scale attempt at providing direct answers in search results, using structured data from trusted sources. One incarnation of the Knowledge Graph is Knowledge Panels, which return rich information about known entities. Here’s part of one for actor Chiwetel Ejiofor (note: this image is truncated)…

The Knowledge Graph marked two very important shifts. First, Google created deep in-search experiences. As Knowledge Panels have evolved, searchers have access to rich information and answers without ever going to an external site. Second, Google started to aggressively link back to their own resources. It’s easy to overlook those faded blue links, but here’s the full Knowledge Panel with every link back to a Google property marked…

Including links to Google Images, that’s 33 different links back to Google. These two changes — self-contained in-search experiences and aggressive internal linking — represent a radical shift in the nature of search engines, and that shift has continued and expanded over the past six years.

More recently, Google added a sharing icon (on the right, directly below the top images). This provides a custom link that allows people to directly share rich Google search results as content on Facebook, Twitter, Google+, and by email. Google no longer views these pages as a path to a destination. Search results are the destination.

The Knowledge Graph also spawned Knowledge Cards, more broadly known as “answer boxes.” Take any fact in the panel above and pose it as a question, and you’re likely to get a Knowledge Card. For example, “How old is Chiwetel Ejiofor?” returns the following…

For many searchers, this will be the end of their journey. Google has answered their question and created a self-contained experience. Note that this example also contains links to additional Google searches.

In 2015, Google launched Medical Knowledge Panels. These gradually evolved into fully customized content experiences created with partners in the medical field. Here’s one for “cardiac arrest” (truncated)…

Note the fully customized design (these images were created specifically for these panels), as well as the multi-tabbed experience. It is now possible to have a complete, customized content experience without ever leaving Google.

II. Live Results

In some specialized cases, Google uses private data partnerships to create customized answer boxes. Google calls these “Live Results.” You’ve probably seen them many times now on weather, sports and stock market searches. Here’s one for “Seattle weather”…

For the casual information seeker, these are self-contained information experiences with most or all of what we care about. Live Results are somewhat unique in that, unlike the general knowledge in the Knowledge Graph, each partnership represents a disruption to an industry.

These partnerships have branched out over time into even more specialized results. Consider, for example, “Snoqualmie ski conditions”…

Sports results are incredibly disruptive, and Google has expanded and enriched these results quite a bit over the past couple of years. Here’s one for “Super Bowl 2018″…

Note that clicking any portion of this Live Result leads to a customized portal on Google that can no longer be called a “search result” in any traditional sense (more on portals later). Special sporting events, such as the 2018 Winter Olympics, have even more rich features. Here are some custom carousels for “Olympic snowboarding results”…

Note that these are multi-column carousels that ultimately lead to dozens of smaller cards. All of these cards click to more Google search results. This design choice may look strange on desktop and marks another trend — Google’s shift to mobile-first design. Here’s the same set of results on a Google Pixel phone…

Here, the horizontal scrolling feels more intuitive, and the carousel is the full-width of the screen, instead of feeling like a free-floating design element. These features are not only rich experiences on mobile screens, but dominate mobile results much more than they do two-column desktop results.

III. Carousels

Speaking of carousels, Google has been experimenting with a variety of horizontal result formats, and many of them are built around driving traffic back to Google searches and properties. One of the older styles of carousels is the list format, which runs across the top of desktop searches (above other results). Here’s one for “Seattle Sounders roster”…

Each player links to a new search result with that player in a Knowledge Panel. This carousel expands to the width of the screen (which is unusual, since Google’s core desktop design is fixed-width). On my 1920×1080 screen, you can see 14 players, each linking to a new Google search, and the option to scroll for more…

This type of list carousel covers a wide range of topics, from “cat breeds” to “types of cheese.” Here’s an interesting one for “best movies of 1984.” The image is truncated, but the full result includes drop-downs to select movie genres and other years…

Once again, each result links to a new search with a Knowledge Panel dedicated to that movie. Another style of carousel is the multi-row horizontal scroller, like this one for “songs by Nirvana”…

In this case, not only does each entry click to a new search result, but many of them have prominent featured videos at the top of the left column (more on that later). My screen shows at least partial information for 24 songs, all representing in-Google links above the traditional search results…

A search for “laptops” (a very competitive, commercial term, unlike the informational searches above) has a number of interesting features. At the bottom of the search is this “Refine by brand” carousel…

Clicking on one of these results leads to a new search with the brand name prepended (e.g. “Apple laptops”). The same search shows this “Best of” carousel…

The smaller “Mentioned in:” links go to articles from the listed publishers. The main, product links go to a Google search result with a product panel. Here’s what I see when I click on “Dell XPS 13 9350” (image is truncated)…

This entity live in the right-hand column and looks like a Knowledge Panel, but is commercial in nature (notice the “Sponsored” label in the upper right). Here, Google is driving searchers directly into a paid/advertising channel.

IV. Answers & Questions

As Google realized that the Knowledge Graph would never scale at the pace of the wider web, they started to extract answers directly from their index (i.e. all of the content in the world, or at least most of it). This led to what they call “Featured Snippets”, a special kind of answer box. Here’s one for “Can hamsters eat cheese?” (yes, I have a lot of cheese-related questions)…

Featured Snippets are an interesting hybrid. On the one hand, they’re an in-search experience (in this case, my basic question has been answered before I’ve even left Google). On the other hand, they do link out to the source site and are a form of organic search result.

Featured Snippets also power answers on Google Assistant and Google Home. If I ask Google Home the same question about hamsters, I hear the following:

On the website TheHamsterHouse.com, they say “Yes, hamsters can eat cheese! Cheese should not be a significant part of your hamster’s diet and you should not feed cheese to your hamster too often. However, feeding cheese to your hamster as a treat, perhaps once per week in small quantities, should be fine.”

You’ll see the answer is identical to the Featured Snippet shown above. Note the attribution (which I’ve bolded) — a voice search can’t link back to the source, posing unique challenges. Google does attempt to provide attribution on Google Home, but as they use answers extracted from the web more broadly, we may see the way original sources are credited change depending…