What is backlink?

Philippines
October 2, 2011 4:31pm CST
I've read about backlink in some forum and read that adsense don't link backlink your blog or site. Is it true? Why they don't like it. And what is backlink?
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1 response
siddme123
@siddme123 (12)
• India
8 Oct 11
Backlink is basically a link that is coming to your website or blog from any other website or blog, the more the backlink the more your serp increases.