It depends on what you’re doing with your web site, but we definitely recommend you a plan for this. Content is critical for optimization and “fresh” or new content is an important factor for ranking. If you have a small business brochure web site, you might probably want to update twice a year some pages on your web site. You might also have a page to display the latest news on your web site where you can add a couple of notes once a month or every two months, if you want. For e-commerce or database web sites, you might update or add content more frequently as those kind of web sites are build to have frequent changes, as and when needed. In any case, if you’re doing optimization, you might want to talk with our optimization people about the importance of getting new information on your web site and the best way to do it without having problems with the code and content of your web site.