Per Google Webmaster Guidelines and their Webmaster Forums, inbound links to your site are one of the top ranking factors for Google and the other major search engines.
Following all current Google Guidelines we set up SEO friendly link exchanges. Here's the official Google Policy on linking strategies.
To improve your rankings we will place a link back to your website, targeting your highest value keywords, in exchange for you placing a link back to another, non competing website. We manage the process and track the links to keep everything compliant and avoid any penalties from Google.
Feel free to call us to get you into the current round of link exchanges.