A recent user survey conducted by Graphics, Visualization & Usability (GVU) Center, http://www.gvu.gatech.edu/, they found That, for FIRST TIME, "Most users find new web pages through other Web pages (88%)" and"...search engines are down to 82%".
Linking from other web sites is now king of exposure!
Linking to and from other web sites is best way to have people find your web site. And it is not as difficult as you might first think.
First of all, it is important to be linked to sites with like interests. If your web site is all about cars you do not want to bother linking to a site that is all about cats.
Visit your favorite web search engine and do a keyword search of sites that are most similar to yours. Take time to actually go to each of top 20 or 30 web sites returned from your keyword search and have a look at your future promoters.
If their content is similar to yours, use their email contact to send owner/web master a SHORT note. For a FREE Request A Link Swap form letter that you can use, send a blank email to: mailto:firstname.lastname@example.org
In your note, you explain that you found them by keyword search via "NAME_THAT search engine". Tell them what you like about their site so that they really know you have visited and you are not some wayward spammer.
Then ask if they would trade links.
You link them if they will link you. This exposure is a WIN/WIN proposition. It does not cost you anything to link to such a web site except a few minutes to enter in a bit of HTML code.