1. To keep visitors interested
Fresh material added regularly to your site keeps visitors coming back to see what's new. Routinely feature creative new content, text, graphics or images, to build the traffic of repeat visitors.
2. To add new Products, Services or Features
Websites must continually evolve and be refined to meet the increasing demands of your audience or client base. You may receive customer feedback about the usability of your site, which will help you improve the site for future customers. You may have a new product, service or special offer to semantic promote. To test, measure and Improve your rankings.