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I have heard many people say "Never pay for a link". I only pay for those directories if it gets me a backlink. My rule is that if it's under 10 bucks, I'll do it. My dentists pay me good money every month and a $10 one time fee isn't going to break the bank especially if it gets you a lifetime backlink.

Hi! I'm following up on some older questions. Did you buy any of these older domains? Do you have any information you could share with us?

Awesome stuff! This isn't an entirely reliable method, but for really quick assessments of what pages are strong on a site, doing a site:yourdomain.com search can show which pages are relatively strongest. Like I said, it isn't perfect data, but it takes 5 seconds and can reveal pages that you might not have assumed are the strongest that may be doing well with a combo of internal and external links.