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After announcing a better, improved Insights for Search, Google released another announcement today in a blog post on Googleblog about two new improvements in Google Search results:

1. Related search keywords. Google now tries to understand what you search for and give you better reletad keywords. For example, if you search for [principles of physics], our algorithms understand that "angular momentum," "special relativity," "big bang" and "quantum mechanic" are related terms that could help you find what you need. Here's an example (click on the images in the post to view them larger):

new google search related keywords

2. Longer snippets (the text under the links in Google Search):

When you do a search on Google, each result we give you starts with a dark blue title and is followed by a few lines of text (what we call a "snippet"), which together give you an idea of what each page is about. To give more context, the snippet shows how the words of your query appear on the page by highlighting them in bold.

When you enter a longer query, with more than three words, regular-length snippets may not give you enough information and context. In these situations, we now increase the number of lines in the snippet to provide more information and show more of the words you typed in the context of the page.

Suppose you were looking for information about Earth's rotation around the sun, and specifically wanted to know about its tilt and distance from the sun. So you type all of that into Google: [earth's rotation axis tilt and distance from sun]. A normal-length snippet wouldn't be able to show you the context for all of those words, but with longer snippets you can be sure that the first result covers all those topics. In addition, the extra line of snippets for the third result shows the word "sun" in context, suggesting that the page doesn't talk about Earth's distance from the sun:

new google snippets

Similarly, if you're looking for a restaurant review that covers all the parts of the meal, longer snippets can help:

new google snippets