What's the footer have to do with SEO?

The footer is completely underused, the area at the bottom of your website (footer) holds tremendous usability and SEO value. First off - if you have a lot of html code in the header of your website - validation codes are most common – you can move it here. Doing so will reduce the amount of html coding that search engines have to read as they load your page making your page load faster - and the speed that a website page opens is an SEO element that affects ranking. Fast is good. Additionally, adding things like your contact information here will make it easy for people to connect with you - no matter what page of your website they are on. This is especially true on mobile devices. Have multiple locations - consider using a split footer where one side is for the local or satellite business - the other for the main location.