When searching for a new job, the first thing you need to do is decide what your goals are.  Are you looking to break into a new career field, searching for more money or do you simply desire to work for a different company?  Before you can begin searching, you need to be fully aware of what you're searching for. 
 
Today's job market is very competitive.  Do some research in your field to discover if there is any new industry information or perhaps new technology that you should be familiar with prior to applying for a job.
 
Consider additional training or education.  Particularly in technological fields, information seems to be growing exponentially and it could be beneficial for you to take a course or two at a community college.  Some fields may also require certification programs or specific degrees.  This idea is especially important if you are considering changing fields since some companies will accept education in a given area in lieu of experience.
 
Make sure your resume is putting your best foot forward.  Most job openings bring in more applications that an employer can easily get through. Your resume should be short (generally 1-2 pages except in rare cases) but very informative.  It should state your experience, your education and any additional certifications or licenses you may have obtained that pertain to the job you are applying for. 
 
Tell everyone you know in your field that you're looking for a new job.  Maybe your neighbor's dad is an executive hiring in your field.  You'll never know that unless you discuss it.  Use your network of relatives, friends and acquaintances to expand your job searching capabilities. 
 
Check within your own company, particularly if you're looking for a pay increase.  Many companies will promote internally before even advertising a position but they need to know that you're interested.  Also, if you're looking for a different opportunity, many corporations are affiliated with others.  You may be able to transfer to a subsidiary of your current organization.
 
Promote yourself.  Send a cover letter and your resume to a few local companies in your field.  They may decide that they absolutely need to have you.  Post your resume online.  There are many job websites that allow you to post your resume for employers to search.  Even though you're searching for a job, you never know when a company may be searching for you...they just won't know it unless you make sure they can find you.
 
Look for a job.  Since you know what you want and all your documents are ready, search for a job.  Check out your local newspaper and the newspaper from a nearby city.  Browse the job sites online to find out who is currently hiring.  If there are specific companies you are interested in, view their websites to see if they have job listings available or give them a call and ask.  Another option is to sign up with your state's department of labor, as they may receive job listings before other sources. 
 
Get ready for your interview.  Even if you haven't received a request for an interview yet, you want to be prepared.  Make sure your interview suit fits you well and is clean.  Make sure all of your documents are prepared, preferably set apart in a briefcase.  You want to be prepared for your interview before you receive a call so that you will not feel rushed when it comes.  That way you're also available if they want to meet immediately.
 
Be patient.  Rome wasn't built in a day and your and your career will not be either.  You may have to repeat your job search from time to time to stay up to date with new opportunities, but don't get discouraged.  You'll find the right job for you, just don't give up.