SEO strategies must regularly be updated since Google is constantly revising its algorithm for determining site rank for specific search terms. Below are links to recent articles that provide things to think about as you are updating your website.
Have you recently noticed that your site is not as high up in the search results for specific targeted terms or phrases? If so, take a look at the reason why you no longer rank for your keyword.
Do you have a lot of ads on your website? If so, you may want to revise your ad strategy after reading about how Google Updates Its Page Layout Algorithm To Go After Sites “Top Heavy” With Ads.
Finally, don't forget about mobile design, the shift of focus to quality content and other changes to SEO,which are highlighted in 20 SEO Tips, Trends and Predictions for 2014.