In addition to martinwebster.wordpress.com I also use domain mapping for a .info and .eu domain. Presently, I have martinwebster.info as the primary domain (I've used this domain for many years and there are many external links.) I'd like to understand the implications of changing the primary domain to martinwebster.eu. Will this adversely affect my Google page ranking? If I do make the change what should I do to improve page ranking and increase visitors to my site?
The blog I need help with is martinwebster.info.