Comparing to Flash when websites are built with HTML they becomer more SEO friendly. Additionally by this way websites with HTML have the chance to improve thier rankings. Also this kind of websites can run in mobile environment, which is a pretty good advantage as today many internet users browse internet by mobile applications. Doing changes in HTML are also easier than Flash, in HTML one can edit the website with text editör and in Flash this can be done by Flash CS6. According to these chooising HTML instead of Flash as website builder is more wise and attractive for webmasters.