The more links to your websight, the better the listing. How about when you use two different webspaces, one from your I-sp (Internet service provider) and one from your H-sp (Host service provider)?
I need my Internet-SP only to get online. Don't use the mail-address or the url they gave me, which is way too long and 'unfriendly'. My domain is hosted somewhere else where I got an x amount of space incl in the monthly fee. Whatever I need more (from Host-SP) is charged on a per megs basis. On the other hand I got an 20 megs webspace included in my Internet-SP fee, which I have to pay for anyway whether I use it or not.
So my thought was, if I'll need it I could always use the webspace from my Internet-SP. But then I thought, hey ... even if I don't need the space, I could still place some pages at my-Internet-SP/my-unfriendly-url-with-lotsa-tildes-and-slash es-or-even-%20's/some-directory/ which link back and forth from my-Host-SP-domain.com/index.htm, just to improve my SE listings.
To the visitors' eye my main websight (Host-SP) is heavily linked from an external websight (Internet-SP), which theoretically would improve my SE listings. But I could also imagine that if it is too obvious (perhaps for a Open Directory moderator?) that it's just another trick, you might get penalized for doing so.
Is there anyone who's ever been penalized for somet'ing like this, or knows of such?