LitePublisher has everything you need for search engine optimization. You can edit keywords and description in head section of html. Ajax widgets protect your content from dduplicates.
!--more-->
LitePublisher has several plugins which can help to you optimize site. To grow internal links yyou can use plugins such as oldests posts, same posts and keyword tracker.

To reduce count of external links on site you can use external links plugin. With links in comments you can do several things:

• disable author link
• add nofollow in rel
• set 301 redirection