I hear so many people say you can use a blog to your advantage.. it helps there revenue gain. it helps there other websites out. and other.. how is that?
Sorry I'm not quite sure what you're asking - do you mean to ask what other advantages blogs have or are you asking how a blog can help other websites?
Well, blogs, such as those using the Wordpress platform is made to be more SEO-friendly over static sites. Also, a blog can be SEOized easily with the use of some simple plugins compared to static sites. The blogosphere is booming with directories, social bookmarking sites and social media that are catered for blogs which you don't quite see much static sites appear on. With a blog, it will help you to interact with your customers directly via the comment section and communicate with them via blog posts. I hope my explanation above helps.