A couple months ago I noticed an enormous increase in the number of links to my site, as reported in Google webmaster tools.
I could think of no reason for this, and other tools that reported inbound links showed no increase.
When I look deeper, most of the links shown in Google webmaster tools are complete spam. In fact, they appear to be hidden from a regular users on the page on which they appear. Many are in an iframe.
Maybe a competitor paid for these links to try to hurt me. Either way, I never tried to get them.
I thought I heard at Pubcon last week that there was a way to report in Webmaster Tools that we don't want those links.
Is this true? I could not find a way to disown these links. If so, please let me know how to do it.