# Big Data The **Big Data** feature in eMailBase provides advanced tools to help you access and leverage data from multiple resources for more personalized and impactful campaigns. Here's a quick overview of its key benefits:
Social Data

Collect public user information from fan pages, groups, and Facebook profiles to accurately build target audiences. Filter by demographic data to narrow the reach and optimize campaign effectiveness.


For more information, visit the Data Library:

https://emailbase.net/insight/

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B2B Data

Leverage millions of publicly available company data and business directory listings from the internet, combined with LinkedIn extensions, to aggregate and provide comprehensive B2B contact lists.


Log in to access B2B contacts: https://app.emailbase.net/

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B2C Data

Refine your campaigns by leveraging demographic insights from publicly available online data. Understand your audience's age, gender, and location to develop more targeted and effective marketing strategies.


Log in to access B2C contacts: https://app.emailbase.net/

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Import Data from Facebook

The system automatically scans customers based on fan page and user group lists on social media and imports them into the system to provide suitable B2B and B2C customer datasets.


Learn more about how to retrieve data from Facebook: https://emailbase.gitbook.io/vietnamese/basics/bigdata/import-data-from-facebook

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With **Big Data**, you can harness valuable social and business insights, ensuring your marketing efforts are data-driven and precise. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://emailbase.gitbook.io/english/basics/bigdata.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.