If I redirect my WordPress blog to my main site, will it help my main site's SEO?

[matt-14567]

I have separate sites for my blog and main website. I'd like to link them in a way that enables the blog to boost my main site's SEO. Is there an easy way to do this? Thanks in advance for any advice...

[EGOL]

I would place the blog in a folder on the same domain as the website.

That way if the blog attracts links then those links are hitting the same domain as your website.

If the blog is on a separate domain then only a portion of the value of the link will flow through to your main site.

[AspenFasteners]

I have wondered about this - my impression is that since Google is quite insistent on tracking fully-qualified sub-domains that the impact of creating CNAME records for a related sub-domain would be limited. Our blog is hosted via dreamhost, whereas our store is on Volusion - a prepackeaged shopping cart solution. To implement a blog in the same domain, we'd have to create a CNAME record like blog.mysite.com and of course, have a link to it from www.myseite.com.

So far, I've always believed that this would only allow for - as you said - "a portion of the value" of the links... is there any reason to believe otherwise?