Employers don't consider your resume follow-up a waste of their time. While there will always be potential employers who are firm believers in the "don't call us, we'll call you" approach, most recruiters admire candidates who make an ef fort to follow up on their resumes. Follow-up shows both initiative and persistence, traits good managers love, especially in individuals who are applying for positions with major responsibilities. Don't worry about seeming too enthusiastic. Company representatives enjoy being pursued. It massages their egos and reminds them their company is worth courting.

My job is to listen to ideas, maybe cook up a few of my own, and make decisions based on what's good for the shareholders and for the company.
Philip Knight

It is extremely unlikely that anyone coming out of school with a technical degree will go into one area and stay there. Today's students have to look forward to the excitement of probably having three or four careers.
Gordon Moore