I was pushing my employer to agree to switch to add a blog onto our site and he asked me, what is the difference between the blog and a forum for SEO purposes. Besides the general look and feel and a forum being more community oriented, is a blog better than a forum for seo, and if so, why? It can be vice-versa I just need to fully understand this myself so I can begin to work on one and explain it to my employer. If anyone can provide any insight, it will be much appreciated.