haven't heard of all of these, but this is about 150 emails in the past 8 hours
http://www.peakmoney.com/
http://www.silvercash.com
http://www.hornyrob.com/webmaster.html
http://blockboostercash.com/
http://www.convertfamily.com/
http://www.slickcash.com/
http://www.sexpromote.com/
http://dodecahedrai.net/
sex promote is by far the most popular, i counted almost 60 spam emails from their sites
luckily outlook filters these out pretty nicely, but spam still sucks