Can you answer to these questions guys about link exchange ? 1)If i have a PR2 website (let's name it website A) in Sandbox (same niche like website B), if i put a RSS Feed in website A with the feed from website B, this will affect my website B or it will give backlinks to my posts? 2)Same like question number one, but the website isn't in Sandbox and it have PR6. If i put an RSS Feed on the PR6 website with the feed from my website, this will be good?