True, an agency can't do much about a product. But they can produce content that will attract links. And they can find people who should be linking to you, bu

True, an agency can't do much about a product. But they can produce content that will attract links. And they can find people who should be linking to you, but aren't because they haven't heard of you. That's what the best ones like CitationLabs and Eric Ward do. A really good SEO can produce 100-150 truly earned links a month. But that would cost you $15k/mo and most clients aren't willing to make that kind of long term investment. Why won't they invest is a question for another thread, but I suspect blackhats have created a "market for lemons."