Google recommends that you type link:yoursite.com in to Google to find this.
We are often asked why this does not show all links.
As is explained in the video, Google only shows a sample of links.
You will find a more complete list in your Analysis Tool or use Google Webmaster Tools or Yahoo Site Explorer
If your web design company has built your website correctly, then they will have provided you with an analysis tool, that will allow you to see all manner of statistics on the performance of your website.
