which is better: sitename.topsite.com or topsite.com/site-name
 

The topic kind of says it all... I was wondering for SEO purposes which is better

bigtitsporn.mysite.com (this is what I currently have)

or

mysite.com/big-tits-porn

I was thinking the latter, but my blog is currently setup as bigtitsporn.mysite.com and I don't want to change anything if its just a coin flip?

There would be an SEO advantage if the subdomain was on a different class-C IP address from the main domain.

But if it's all on the same host I don't think it would make a difference at all, although maybe someone who knows more about SEO can comment.

It really doesn't matter when it comes to the seo thing. have it as you like . nothing would get affected.