Arbor in my opinion has the highest quality content on a pay for play model (they're not cheap)

http://www.shadowserver.org/wiki/pmwiki.php/Stats/Statistics
http://blog.emergingthreatspro.com/
https://alliance.mwcollect.org/
https://alliance.mwcollect.org/public/attacker-world-map
http://www.support-intelligence.com/technology/
http://www.pandasecurity.com/img/enc/infection.htm
http://isc.sans.edu/reports.html

You need to be aware though, most companies charge to really good data and for those non-profits who share information, they don't publicly disclose it sometimes for good reason. There are a lot of virus and malware authors who follow this data just as much as the good guys do. They do so in order to see if their "warez" are being detected. And by "warez"  I don't mean cracked programs.