Tip #1 - Highlight your skills not your wants.
The cover letter should no longer say the field or the type of environment you are seeking. Instead, use your cover letter as an opportunity to share how your skills will enhance the employer’s business or solve a workplace problem. Give examples of how your skill set has made a difference.
Tip #2 – Do your research.
Gone are the days of opening a newspaper to find a job. Many companies are advertising their jobs online and you may need to go to their website or to one of their social marketing sites to learn of open positions. Finding the job opening isn't the end of your research. Before you engage with an employer, whether it is through a cover letter or an interview, find out who they are. Remember, you want to show that you know who you are talking to and that you can show this employer how your skills compliment their business needs.
Tip #3 – Market yourself.
The 2009 Jobvite Social Recruitment Survey showed that 80% of employers used LinkedIn as a primary tool to find employees and 70% of employers have rejected a candidate due to "digital dirt".
If you are online in any form (LinkedIn, Facebook, MySpace, Twitter YouTube, etc.) you are marketing yourself. So be sure to market yourself well. Keep your online presence professional (no pictures you wouldn't want a potential employer to see) and use your online network to help in your job search. For example, ask colleagues to write a reference for your LinkedIn page or fan pages relevant to your field and goals on Facebook.