I've been looking for a Rails-powered drop in blog for domains so that I can have www.mydomain.com/blog instead of blog.mydomain.com. As I understand it, Google's PageRank algorithm assigns PageRank scores to each subdomain separately. Thus great blog posts on blog.mydomain.com will improve the PageRank score of blog.mydomain.com separate from the PageRank score of www.mydomain.com. For example, according to http://www.prchecker.info/check_page_rank.php, blog.twilio.com has a PR of 5 while www.twilio.com has a PR of 6. blog.shopify.com has a PR of 6 while www.shopify.com has a PR of 7. My naive guess is that if all the links to blog.shopify.com instead pointed to www.shopify.com/blog/... then the PR for www.shopify.com would be even higher.Can anyone recommend a rails plugin that will add standard blog functionality (posts, comments, tags, feeds, etc.) into existing rails apps? Or is there some way to 'symlink' (not the right word but a proxy for the idea) the www.mydomain.com/blog/... to use posterous, wordpress, tumblr, etc. underneath?
Lastly, I'd like to avoid rolling my own. I created a simple posts controller in a pinch for a site I started on Thursday (www.formds.com) which was great in allowing links to my main site, but I'd really like to avoid recreating the wheel. It looks bad and is time I'd rather spend elsewhere. I'd _love_ a symlink'd tumblr/posterous/wordpress running under my domain.
Thanks for thoughts,
Robert