I have seen many seo companies who offers relavent links from PR4, pr5 pr6.... webpages. How did they got those pages or what is the tecnics/idea behind proving these link building services ? Does anyone know who has worked as link builders in seo company ?
Maybe they own some of these high pagerabk links ans maybe they find these links. But of course as these links contains a lot of external outbound links on them, they cant help your website to gain a high pagerank. Also i don't recommend you to buy links from other websites as its not allowed by Google. So if you want to use services of these companies, firstly be sure about them and their guarantees then decide to choice them.
I know of some companies that have up to 500 websites all with heavy SEO for the reason and after website ranks they remove link. It is used for time frame of getting to page one and later to sell website.
Thanks dude.... I too believe that these companies have their own site with good PR which they use for their clients.
1-Some PageRank claimed is a fake PR and can be figured out. 2-If the home page gets high PR it doesn't mean sub-pages get the same PR. 3-The more links go out from high PR site the less value they have.