What kind of link network are these?

Discussion in 'Black Hat SEO' started by IMShane, Dec 31, 2011.

  1. IMShane

    IMShane Junior Member

    Sep 20, 2011
    Likes Received:
    Hey guys, I was checking a competitor's backlinks and found something interesting, there are lots of similar backlink pages such as:

    They are hosted on different ips, so maybe they belong to some kind of private link networks? Or maybe there's only one person behind all these sites? Where can I find such link networks and join them?

    Anybody knows?

    Thanks a lot