Disclaimer: I'm not an expert on resumes, but mine has always done me good, and I've read a bunch in the past couple months for a position we're hiring for at my current job.
1. At the top make sure you have your name, address, phone number, and email address.
2. Objective: this section is usually pretty useless, I think. Obviously your objective is to get a job! hahaha. Anyway, unless you think this is really adding something, i'd remove this. I've seen a couple with a "Summary" section at the top, with 2-3 short to-the-point sentences saying the basics (basically, summarizing that you have the qualifications necessary). I don't have that either, though.
3. Education: college, City/state of the college, year graduated, major (and any minors). I'd also list any relevant awards/activities from college here.
4. Experience, or Relevant Experience: If you call it one of these titles, instead of "Work Experience" then you can list your volunteer work, etc. here as well! Make sure any job you list is RELEVANT, though. I don't want to know you worked in a daycare when you were 17, or spent a summer scooping ice cream during college. You should give the company name, dates employed there, job title, and city/state of the job. Then a few bullet points of your contributions, focusing on what you really did that made a difference.
5. Skills: only if you have actual skills that are listable, like computer programs, foreign languages, etc.
I think you can go over a page (but no more than 2 pages!) if you need to, but if this is for an entry-level position then you should really, really be able to fit it on one page.
Best advice I ever got: once you're done, print it out and hand it to a friend. Time them for about 10 seconds (or less), and then take the resume back. Ask them what they got out of it: they should be able to name your degree, and your basic job history, and relevant skills. If not, you need to do some more work to make it clearer.