There are agents who will tell you that all you need to do is place a sign in the yard and put the home on the local MLS!
Everything you do helps, sometimes in ways you will never know. Whether it is an internet ad or "enhanced listing," a newspaper ad, e-mails to buyers' agents, open houses, a hot dog roast to acquaint neighbors with your listing, post cards to potential buyers, promotions and information at the home itself or anything else you can think of, everything helps.
I know some agents disagree, but consider a company like Verizon that measures its ad budget in billions of dollars. You see their ads in every media. Does anyone think that they do not do enough research to know from which media they get the vast majority of their direct referrals? Of course they know. But they also know that other media support the main media, so they create a web that keeps pointing the buyers in the right direction. As a result, Verizon has been incredibly successful. And you can be also if you use many of the tools at you disposal!
I hope this helps.
Prudential Real Estate of the Rockies
Before doing anything consult with your Realtor and ask your Realtor's opinion about pricing, your home's condition and staging. I am sure there is an answer why your home did not sell.
Pricing is the key for selling your home in today's Real estate market. Working on better pricing strategy may help you.