Constant supply of ultimate game cards ;)

If read and used correctly, These referal guides will bring in ALOT of money, which can be used for anything. They're leaked, and would usually cost about $4-7 each, even though some of them don't look like much they are pretty decent things.

Virustotal

Note; These are meant to be used with a prize rewarding site. Or they can just be used to gain traffic to your website/blog.