Glen Andrews said
4 months, 1 week ago: @gblueprint
Hey Brandon, I personally would attach the blog to my existing site as long as the blog covers the same information (www.companyname.com/blog).
Obviously if the blog is covering different information, aside from your business, then I would set up a blog that completely separate (www.blogname.com).
Just my 2 cents. 
Have a great day Brandon!