Do you have the opportunity?

Find out if your company has room for you to grow. The smaller the company, the smaller your chances for promotion--especially if your immediate bosses are the ones who put up the business in the first place.

On the other hand, if your company has a well-structured hierarchy, each resignation is a chance for you to climb one step up the ladder. This is also true if your company is expanding its business by opening new offices or entering new offices or entering new markets.

If you are working for a company that will not provide you opportunities for growth, scout around for one that will. Staying in and resenting a company that does not allow you to grow is a disservice to both you and the company.

If you do get a job offer, assess whether or not the new company can promise a higher position and better benefits. IF you'll be stuck with the same level or compensation package, you're only making a lateral transfer.

That might not be worth giving up your old job. The only exception is if the new company can provide you with the experience you need for a higher level position.