Do Links From Link Auctions Help Google Rankings?

[mattrix]

Has anyone here ever used [edit]link auctions[/edit] to purchase links? Is this considered a dubious practice? I know Google considers buying backlinks bad but that serves their interests - my question is whether purchasing links on places like the above help my rankings in the Google (I'm assuming a context matched link).

I'm thinking the answer depends completely on the site you are purchasing links from but would appreciate any input you guys can offer.

[edited by: martinibuster at 1:42 am (utc) on Jan. 9, 2007]
[edit reason] No Specifics Please. Thanks. [/edit]