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Last year, the privacy and free speech mistakes of tech companies led to tons of embarrassing and costly stories. Often, these missteps would have been avoidable with good planning and processes in place, but many companies lack the resources to navigate this increasingly thorny terrain.

To help tech businesses of all sizes plan around these issues and implement strong practices, the ACLU of California is releasing a new edition of .

This business primer(and its ) is packed with more than 100 real-life case studies and cutting-edge recommendations on everything from privacy policies to security planning to community speech standards. Together, the principles and examples show the business value in making privacy and free speech part of a company’s DNA.

This third edition addresses new challenges facing businesses today and shows how to avoid missteps while building privacy and free speech into products and company culture. The lessons include:

Respect your data. Avoid by collecting only the data you need for your product and making sure that your algorithms and data use protect users and .

Create a secure data ecosystem. Security isn’t just about outside threats – companies need to limit internal access to data , incorporate and to , and to protect users.

Be transparent about practices. Clear descriptions of privacy practices are essential to avoiding PR disasters, whether the product is , , or a .

Encourage speech by empowering users. Companies can create cohesive communities and avoid harmful, speech-chilling harassment by creating platforms with , , and rather than content censorship.

Fight for your users. Companies that and routinely receive praise, while those that or lose the trust of users and public alike.

Regardless of company size, this guide helps take the guesswork out of protecting privacy and free speech by charting out the essential questions and providing practical tips for spotting issues in products and business models.

We look forward to tech companies using this resource to design and launch their products the right way. By following some pretty simple steps to incorporate privacy and free speech protections into products, businesses can make their services user friendly and avoid costly mistakes. As the primer illustrates, doing so is not just good on principle – it’s good for business, too.

View the primer online at or .