Here’s a good way to see what Google thinks about your website.
Go to Google.com, and in the search field, enter: related:www.yourdomain.com/ ~yourdomain.com (replacing yourdomain.com with your actual domain name).
Click the Google Search button and what you will see is a list of websites that Google thinks are related to yours. The list should ideally contain your competitors and other sites in your same industry.
Why is this important? Because if you want to come up high in keyword search terms related to your line of business, it is important for Google to understand that you are in that line of business!
How does Google determine these related websites? By looking at the content on your site as well as where you are getting your incoming links from. If you have several incoming links from highly relevant sites in your industry, then Google will properly classify your site. If you are lacking incoming links and the links you do have are from unrelated websites, then Google may not know what line of business you are actually in, which means your rankings will suffer. If you find this to be the case, approach other sites in your industry (such as vendors, customers, industry associations, etc.) and ask (or beg) them to link to you. It is always of upmost importance that you have plenty of highly relevant incoming links if you want to rank well!