Porn, porn sites, pictures, video clips, etc... are all major platforms for spreading spyware, adware, malicious code and scripts, and yes, mp3's have even started showing up carrying destructive payloads. I also have never had anything make it onto my personal box, but I service many clients who are not so fortunate. You must educate yourself in order to protect yourself. You may feel free to visit my website, currently undergoing some new renovations and additions @ www.centcomcomputers.net.
I hope you can find something there that will help, and more info to come later.
