Google’s new privacy policy went into effect Thursday, and after hacking through the document and comparing it to the old policies, two things are apparent — the document has been re-crafted with a strong emphasis on mobile and cross-platform sharing.

In order to take full advantage of sharing on Google, you must create a publicly visible Google profile, which may include your name and photo — something that’s been in effect since Google+ launched. However, now Google is integrating that information across all its platforms. In other words, your YouTube account is linked to your Gmail and your search log.

“By understanding your preferences we can ensure that we give you the search results that you’re looking for, and by analyzing the search logs of millions of users in aggregate, we can continually improve our search algorithm, develop new features, keep our systems secure and even predict the next flu outbreak,” the search giant writes on Good to Know, its website explaining privacy and the policy.

There are also a few changes taking place on the mobile front. For example, Google will use stronger GPS detection, such as sensor data from your device, and provide information using nearby Wi-Fi access points and cell towers.

The company wrote in a blog post Thursday that “the new policy doesn’t change any existing privacy settings or how any personal information is shared outside of Google. We aren’t collecting any new or additional information about users. We won’t be selling your personal data. And we will continue to employ industry-leading security to keep your information safe.”

So what exactly is Google doing with all of your data? Here are five things that you should know.via[mashable]

1. Combines Personal Information Across its Services

Google may "combine personal information from one service with information, including personal information, from other Google services -- for example, to make it easier to share things with people you know."

In other words, by combining search data with other data -- say, what videos you're watching on YouTube -- it can learn more about you. As before, this is with opt-in consent.