Hands-on Challenges:

Create a Trailhead Account

Trailhead Exercise:

Trailhead Quick Look:  https://trailhead.salesforce.com/content/learn/modules/trailblazer-community-basics

Explore the Trailblazer Community: https://trailhead.salesforce.com/content/learn/modules/trailblazer-community-quick-look/explore-the-trailblazer-community

Trailhead and Trailblazer Community: https://trailhead.salesforce.com/content/learn/modules/trailhead_basics

Trailblazer Community Groups: https://trailhead.salesforce.com/content/learn/modules/trailblazer-community-basics

Salesforce Ecosystem Quick look: https://trailhead.salesforce.com/content/learn/modules/the-salesforce-ecosystem-quick-look