top 9 of 97 things every programmer should know

Brian Du Preez picked 9 things out of 97 Things every programmer should know. I recommend to take a look to the article.

10 ways to suck at programming

FinalInt has a "don't do these" article for programmers. You have to check it; it's awesome.

10 things every programmer should know for their first job

James Stroup has a great article which can be quite useful for programmers who get their first job. I can't recommend it enough.