• http://www.i18nguy.com textexin

    As you add domains you increase your listings. However, your partners linking to you now choose one or the other domain to link to, reducing the number of links to either page and reducing the ranking.
    For example, say you have 100 partners linking to x.com. Then you create x.de.
    Maybe 40 partners in switch their links to x.de, reducing links to x.com to 60 and reducing its rank.
    This dilution of rank should perhaps be considered.