I discovered that not only the total traffic that entered your website monthly determined your alexa rankings but your page views also contribute to your alexa ranking, the extentins that I will recommend for easy access and navigations of your sites are: Lof Aticle scroller: this extension is good for showcasing your articles it is a great module that display you article/post and displays images, title and description of each article it work by you setting the numbers of articles to be displayed per page and the category of articles that you want to display. Tip: Place your latest news module to the left hand side of your site because google bots craw your site from left to right hand side to enable quick index of your latest articles it is necesarry to put the most important links at the left hand side of your site. Try to brows through joomla article directory for latest extensions on site navigation and seo and more try to be updating you joomla as new version are coming out new security and more seo and navigation improvements are created. Also try Simple related article extension I have already explain how this plugin works on the best joomla extension forum try to read more about simple related article there...