Just like an interview, a job offer can tell you a great deal about a potential employer. An offer can reveal how serious the employer is about the offer, how valuable you are to the company, and most importantly, whether you should make the move.
Jobs are customarily offered over the telephone or in person. The employer should offer more than just, "Congratulations, you've got the job." He or she should explain the offer in detail and answer your questions.
It is appropriate to respond to a job offer within two to four days, so in the meantime, check out Salary.com’s Job Assessor tool, which will help you evaluate your offer(s). Also, while you're thinking it over, here are some things to look for: