Use free tools from search engines
If your site hasn’t added a Google Sitemap page, consider doing so. Google and other major search engines share a common feature that allows Webmasters to tell them about each page of their sites available for crawling and how often it changes and how important it is to the site. “You’re actually producing a page to have the search engine come to you,” he says.
Another free tool especially useful for small companies with a local clientele is Google Maps, a free local business-listing service, which displays an address, hours and description, sometimes at the top of a search-results page.
“It’s hard to pay for that kind of advertising