Build mailing list for gaming news sites

This is simple enough. We want to build a qualitative mailing list comprised of gaming news sites - anything that has editorial content about gaming, especially online gaming, and that would make sense to add to our PR mailing list. We will use this to send press releases about our online browser game, as a complement to PrWeb, which distributes more to traditional media and may miss out many smaller, online-only outlets (which are potentially more interesting to us anyway). We are looking to receive at least a few hundred QUALITY e-mails to gaming sites, each one along with an URL where we can verify the site and that they have editorial content on it. Please also add the language used on the site (we accept non-english sites as well, in fact encourage such sites as we have a very braod international appeal). We will of course give every recipient a chance to opt out from future mailings. When you bid for this project, please also make a rough estimate of how many quality contacts you will be able to find.