With the job market still very unstable, many folks are updating their resumes. For many of us, it\u2019s an activity we haven\u2019t had to worry about for years, as well as one that makes you scratch your head and wonder if you\u2019re doing it right.I recently spoke with recruiting expert Phil Sullivan about what IT professionals need to do when updating their resumes.\u201cA resume is more important today than it has been for quite some time,\u201d Sullivan says. \u201cIn the late \u201990s resumes weren\u2019t all that important because there wasn\u2019t that much competition. [But today a] resume needs to be well done.\u201dSullivan suggests starting out with your contact information at the top, followed by a succinct professional summary. The summary can be tailored according to the job for which you\u2019re applying, he says, and in some cases can replace a cover letter.When e-mailing your resume via attachment, Sullivan advises you include in the e-mail a very brief reason why you\u2019re responding to the ad or call for resumes. Don\u2019t knock yourself out putting all your information in to the e-mail as many times the e-mail may get separated from your resume and your effort would be for naught.In terms of resume length, a general rule of thumb says if you\u2019re two to five years into your career, keep your resume to a page. \u201cFor somebody with more experience, they need to think about a two-page resume,\u201d Sullivan says. \u201cVery senior people, especially consultants, can go with resumes longer than that.\u201d Consultants can have two-page resumes, but add addendums that give more examples of projects or detail in specific areas.\u201dWhen it comes to layout and style, Sullivan says classic is best. \u201cStick with Word or PDF, don\u2019t get fancy,\u201d he says. \u201cDon\u2019t use fancy fonts or do anything unconventional. A nice, clean, New Times Roman, in 9 or 10 point size works just fine.\u201dNext week, Sullivan will offer advice on how to detail the meat of your resume\u00a0- your technical knowledge, education and past jobs.