There are lot’s of ways to make sure that you are keeping current with the content on your site.  You can check other websites for the most up to date information.  There are also many blogs out there and solopreneur types that can provide you with a lot of information.  SEO is constantly changing and its best to join in different groups in order to keep your site as “fresh” as possible.  You can always use a boost when it comes to keeping up with the latest when it comes to SEO.  We spend at least 10 hours per week doing research into the latest “tricks of the trade” when it comes to SEO.  I also keep any affiliate type of sites, such as up to date by checkout out similar sites that are out there.  It doesn’t take much time, and looking “fresh” is very important.