Anybody knows good tutorial or guide for this? I was wondering, if i change my blog domain, will my PR become 0? Is it recommended to change domain or better to leave it using the old one?
oh friend, PR is for domain. If the old domain is 0 you can leave it. You will start from the beginning if you choose new domain, I think.
yes...but what you can do is keep your old domain and forward it to your new one using a re-direct (just a snippet of code will fix that)
just transfer your blog to the new domain and then 301 redirect your old domain to the new one. And yes you will lose your Pr