Moving blog to different domain, how do I not lose ranking?

Setting up a 301 redirect will not only send the user to the correct page, but it will also tell search engines that the page has permanently been moved and transfer the link credit to the new page.

You can create what is called a "wild card" redirect in your .htaccess file that will transfer everything on a domain-name level. Essentially, this automatically adds a 301 redirect to all of your old domain URLs and pushes them to the new domain with the same URL.

It's critical that you take your time and ensure everything is getting 301 redirected properly. This is very important for both traffic and search. You can use a 301 checker to make sure everything is being transferred properly.

Try to keep the exact same URL structure while switching domains. If you want to make changes to the URL structure, it's best to wait a few months after the domain transfer. Once things have settled, then make your changes.

In Google Webmaster Tools, if you click on the little gear icon, you'll find a link to "Change of Address." This is a tool you can use to inform Google that you changed domain names. Google will update the domain in its system so your listings are up to date.

Should I delete the old blog post? Like delete the whole page from the old website or will that completely diminish the 301 redirect?

301 redirect is the best choice for you. Just after few days, your site will be back!!

I've done a lot of URL rewriting and redirection, and yes 301 redirect (Moved Permanently) will not just redirect your visitors to your new blog, it will also tell to the search engines and their Web crawlers that their indexed pages has been changed.

There are many ways to change the targets of your old URLs to your new URLs that are recognizable by search engines:

1. URL redirects using a content delivery network (CDN).
2. Server configuration using htaccess or else.

Why would want to do anything with them? You people continue to make no real webmaster sense.

Just put links to the new blog on the old ones. Simple. Then just do the new blogs.

The old blogs stay intact, indexed, etc.

This stuff is not really that hard....

Paul