I noticed on tylercruz’s blog, he’s made a major mistake, and one that has cost him dearly in terms of PR.
Go to http://www.tylercruz.com and notice a healthy PR5
Now go to http://tylercruz.com and notice a PR4
So google is viewing his blog as at least two different sites and the pagerank proves this. This can be solved with a few lines of code.
I blogged about this a few weeks ago. I knew about it, but never implemented it as i thought it was just a myth. Once my PR didn’t increase, i said i was taking no chances from now on and i’d add re-directs pointing to www.
I assume Tyler doesn’t know about this, but then again maybe he has some reasoning behind it.. but from what i’ve gathered studying SEO and building blogs, this is a simple, but crucial change that needs to be made to maximise SEO and PR.
I know of it, but haven’t researched it yet. I, too, am very wary of myths, especially when it comes to SEO.
I may research into this some more though.
For WordPress blogs there’s an excellent plugin I use to do the same thing: http://www.justinshattuck.com/wordpress-www-redirect-plugin/ It’s a lot easier than messing with the .htaccess files.