Google Webmaster Tools show one site linking to my site with 1,297,033 links. These haven't just appeared, they have been there since just after I started the site a year ago, but I am wondering how it is possible to have so many?
The site that has all these links coming from it is a real estate portal, (estateportal.eu) i.e. it displays adverts uploaded by agents (it's a free service, I have one link back to them from my site in return). I only have 24 adverts and my profile so I don't understand how this could produce so many links, and ideas please?