Hi Rose, the top exposure these days comes from the internet, because that is where 90%+ of home buyers are looking as far as exposure goes. Besides this, the most important form of exposure is a lawn sign, believe it or not, to capture the people who are driving around your neighborhood. That's really the vast majority of searches these days. Print advertising is very minimal. So as far as top exposure goes, your house should be in the local MLS (multiple listing service) system because that is how most web sites will source information about your home.
Your agent should also host one or two broker open-houses to introduce other brokers. If you get one general consumer open house per month, that helps.
To be honest, your home will only be exposed if the price is RIGHT. You need to price your home at market value or ALL of these measures will be quite worthless. Do not make the mistake of 90% of sellers in this market, thinking you will price it high and then drop it down when you get no showings. You will lose the most critical first 30 days of the listing.
To get exposure, just have your agent do the basics -- and meet that effort by having the courage to price your home right. That will get you the best price at the best time, without getting into the "damaged goods" psychology that sets your selling price back when your home has not sold two months down the road.