A good resource for finding free printable social stories is the PBIS World website. In addition to offering tips on why to use social stories as well as when to use them and how, the website provides links to various free social stories near the bottom of the page.
Many of the stories linked to from the PBIS World website cater to specific kinds of learners, which can help the person using the story customize it to students' experiences. Links to websites such as Autism4Teachers and Autism Social Stories assist those who are specifically seeking social stories to help children with autism. Other social story websites have specific themes, which can be useful to provide specific lessons to their audiences.
One site focuses on stories involving children learning to get dressed, tie shoes, and brush their teeth, while other focus exclusively on single topics such as the importance of hygiene. One of the biggest focuses of these stories is the emphasis on developing emotional awareness of self and others, which is illustrated with links to social stories that emphasise self control, social skills, and how to both express frustration and give a hug. While the PBIS World website does occasionally link to printed texts that cost money, most of its links are to free social stories that are presented in HTML or PDF format, making them easily printable.