I just created a subdomain to help our main TLD website. I was wondering if it's smart to create a separate TLD for this subdomain and set up a forward and build links to it. Reason I was thinking about it because it would be easier for people to remember instead of typing in subdomain.maindomain.com. But, I don't want the main website to suffer, since the purpose of creating this subdomain and it's content is to help the main domain. Any inputs on this? Thank you.