Being Good Digital Citizens:
1) How to find good sources - use some Alan November techniques here (look at the ending .edu .gov)
2) Safety on the internet. Making sure you never give out personal information.
3) Plagiarism - it is very easy to accidentally plagiarize.
I fortunately have colleagues that have given me great resources. There are some websites that have explanations, videos, and even class work (paperwork) to help cover the 3 concepts that I have listed above. Brainpop also have good videos that talk about cyber-bullying.