I want to know about the redirection there are some I know that is 301 and 302 etc but I seem another one type of redirection that is alias type means there are two or more then two domain are open same site.. Can we say this domain aliasing. Let we give this name to this, but by this our page rank remain constant that I have seen but can google give a penalty on this work , if not then we can do this for our SEO purpose, for guidline please see the www.netlink.in and see its cache by the google, I need to know your views please share this with me