Thread: Paid Links

How search engines identify paid links?

They are probably searching for some link building patterns. (for example: If you have links from 300 different ip-s that is a good sign of buying links).

I don't have any idea that how does search engine identify paid links...

Google cannot identify paid links as such but if a site is suddenly flooded with links (people take help of link blasting packages) it might sniff a manipulation and take an action against it.

Another method would be if someone files a spam report to Google.