Comment It Already Does -- Handles HTTP/301 (Score 2, Informative) 270
Once again, HTTP/301 redirects are already taken into account by google pagerank. This is well known SEO.
For example, most sites redirect users to a canonical version of their site. Go to www.slashdot.org, and you are 301 redirected to slashdot.org (no www). This causes links to either version to contribute to slashdot's pagerank. This also works across domains, e.g. linensnthings.com to lnt.com.
Pagerank is "earned" by the final redirected destination, not the actual linked site.
tinyurl uses 301 redirects. Thus, google doesn't have to change anything to cover their redirects.
For example, most sites redirect users to a canonical version of their site. Go to www.slashdot.org, and you are 301 redirected to slashdot.org (no www). This causes links to either version to contribute to slashdot's pagerank. This also works across domains, e.g. linensnthings.com to lnt.com.
Pagerank is "earned" by the final redirected destination, not the actual linked site.
tinyurl uses 301 redirects. Thus, google doesn't have to change anything to cover their redirects.