A useful starting point for understanding the ways in which big tech companies have shaped US policy and society could be found in the resources listed below. However, it's important to approach the topic with a critical eye and evaluate information carefully, as the issue is complex and multi-faceted.

• "World Without Mind: The Existential Threat of Big Tech" by Franklin Foer: This book explores the impact of big tech companies on society and democracy, and how their influence has shaped US policy.

• "The Age of Surveillance Capitalism: The Fight for a Human Future at the New Frontier of Power" by Shoshana Zuboff: This book examines the economic and political power of big tech companies and how they have built a new form of capitalism based on data extraction and manipulation.

• "No Filter: The Inside Story of Instagram" by Sarah Frier: This book tells the story of how Instagram, now owned by Facebook, became a cultural phenomenon and the ways in which it has influenced politics and society.

• "The Social Dilemma" (Netflix documentary): This documentary explores the impact of social media on society and how big tech companies have exploited human psychology to keep users engaged and generate profits.

• "Platform Capitalism" by Nick Srnicek: This book examines the economic and political power of big tech companies and how they have transformed the nature of work, communication, and society.

• "Wired" magazine: This publication covers technology, culture, and politics, with in-depth reporting and analysis of big tech companies and their influence on society.

If you're interested in limiting the power of big tech in politics, there are several actions you can take and organizations you can join or support. Here are some suggestions:

• Advocate for antitrust enforcement: One way to limit the power of big tech companies is to advocate for stronger antitrust enforcement, which would prevent companies from engaging in anti-competitive practices and would promote competition in the tech industry. Contact your elected representatives and urge them to support antitrust enforcement efforts.

• Support data privacy legislation: Another way to limit the power of big tech companies is to support legislation that protects consumers' data privacy and limits the collection and use of personal information by these companies. Contact your elected representatives and urge them to support data privacy legislation.

• Support media literacy education: Big tech companies often use algorithms and other tools to manipulate what information people see online, which can impact political views and behavior. Supporting media literacy education can help people understand how to critically evaluate information they see online and can help mitigate the influence of big tech on politics.

• Join or support organizations that promote digital rights: Organizations like the Electronic Frontier Foundation, the Center for Democracy and Technology, and Fight for the Future work to protect digital rights and promote transparency and accountability in the tech industry.

• Use alternative platforms: Consider using alternative platforms to those owned by big tech companies, such as open-source social networks like Mastodon or decentralized messaging platforms like Signal, which prioritize user privacy and control.

By taking these steps, you can help limit the power of big tech in politics and promote a more transparent, accountable, and democratic tech industry. Additionally, joining or supporting organizations that work on these issues can amplify your efforts and contribute to a larger movement towards greater digital rights and protections for all.