If you search on Google, Yahoo and MSN using a keyword phrase that you would expect your site to rank highly for, but cannot find your site on pages 1-3 of results, then you definitely need to optimise your site for the search engines, and to secure some professional SEO help.
The keyword phrase is not a broad, general word or term, but one that you in particular should rank for, e.g; if you sell a particular product or service in a set location such a motel based in Riccarton, Christchurch, your search should be a specific;
“motel accommodation riccarton christchurch” and not a general “motel accommodation” Equally, it could be your “motel name+location.”
If your site does not appear in pages 1-3… call The SEO Guy! 
Approximately 90% of searchers will not go past the 3rd page of results! Something like 60% will not go past the 2nd page… So if your business is not listed on the first 3 pages of search engine results, its certain that you are missing a lot of potential clients for your products and/or services.
