Is it safe to log on facebook on a school computer?

[Jason]

This really depends. Many schools (mine being one) had key logging software that kept track of keystrokes. Certain key words would stand out if typed and the school would know which user typed what. So, if you can already get onto facebook without getting in trouble, you should be fine typing in your credentials.

If you're unsure if you school has key logging software, type parts of the web address at different times so that it won't stand out in the software.

It also may be that your school restricts or watches over websites that they don't want students on. If that is the case, you're sort of screwed. Ask your cool teacher, he should be able to tell you what resources the school has.