Hello,
Your question about iframes has already been answered, but I thought I'd share my experiences with Sharepoint as a blog platform...
I've just spent the past few months building a site in Sharepoint with a blog. We ended up coming up with a couple of different solutions from an SEO perspective...
The biggest issues the out-of-the-box blog in Sharepoint (I'm assumine 2010 or 2007 here) faces are:
- Lack of SEO friendly URLs
- No meta description
- The apparent inability to display an excerpt on the homepage of the blog.
- Horrible horrible commenting system
Unfortunately the blog uses a query to pull the posts from a list, and it's a lot harder to modify than a standard page layout.
We've been testing out two solutions:
- Using an article page for the blog post, a content query web part to roll up these articles on a "blog" page, and then used the Byline field on the article as a way to power both the meta description (I can locate the code for you for that if you want) and the excerpt.
We then created "category" pages which contained another content query web part, which attempted to display all posts that had a certain keyword in them.
Finally, we ditched the Sharepoint comments system altogether, and used Disqus (which was surprisingly easy to add to the blog)
It was pretty clunky, but from a purely SEO perspective, it's working out fine.
- That said, we're unhappy with how clunky it is for internal users, so we're now working with an open source solution that enhances Sharepoint's native blog. http://cks.codeplex.com/releases/view/28520
Just this morning we got it to work with Sharepoint 2010. It covers most of the issues I outlined above (though we're still going to implement disqus) aside from the meta description, which is what I'm set to tackle next.
Hopefully this provides some guidance on where you might be able to go while remaining with Sharepoint.