I have 2 WP blogs: http://mydomain.com/myblog and http://myblog.mydomain.com, with SAME architecture, design and permalink structure. Any post of the first one blog is indexed in Google, but in the second one the posts displayed on the first 2 pages only are indexed. As an example, when I add a new post on http://myblog.mydomain.com, the post which was previously displayed on the second page which now slips on third page disappears in Google index. Is it matter of the subdomain? Does it depend from the server? (the blogs are hosted on different servers).