I often hear a lot of users here recommending using 301 redirection to pass on link juice. I am wondering how it works in general? Suppose I got a expired high pr domain, do I blast that site directly, then 301 redirect it to my 'money site'? In theory, this should keep me safe because if by any chance G decided to penalize me, they would've done it to my 'expired high pr domain' site, and not my money site? Is this the reason why a lot of us are spamming bit.ly links nowadays? Also, when blasting the 'expired high pr domain' site, does this site get indexed as well? or will it show my 'money site' in rankings? Please advice. Thank you.