How reformated back links effect SE ranking

[zetronix]

sometimes when I publish links for things like google base, or use pay per click networks such as shpping.com, nexttag or CNET, the links going to my site are not direct, but encoded and redirected. The link most likely desn't even contain my domain on it, but the user does land on my page.

So I'm wondering how that effects my site raking on search engines, or if I get any credit from these kinds of links at all.

[A.Zan]

First of all, are you sure they are do_follow backlinks ?