Here is a pretty good article from the UMCom about plagiarism and six ways to avoid it. I try not to be too guilty of this but I guarantee I have some on this blog. For that I apologies!
Here is a summary of their points:
- Give full Citations
- Ask permission
- Use content from original sources whenever possible
- Don’t use material from social media without verifying its origin
- Use a plagiarism checker
- Use online resources for education