Is the google sitemap plugin necessary for seo improvement or not? I was thinking of installing it but if it's not worth it then i won't.
Honestly I don't feel very comfortable giving Google a roadmap to my website including the pages I value most. Good content and navigation structure will Google everything they need to index your website. -D
depends who ya ask, everyone has diff opinions on the subject myself i use them on some blogs and others i dont bother just depends