A few weeks ago, I had an exchange with a 'industry blogger' that a link she had put in her text was going directly to a malware site.
Her response was "Thanks, I didn't notice. I'm using Firefox" and proceeded to quickly remove the link.
Just before she did, we cleared out all the 'stuff' (cache, cookies, etc) and tried again.
Sure enough, Firefox blocked the malware. IE7 launched Windows installer. Yikes!
Evidently, in recent weeks, some ISP's have been redirecting malware sites. Search engines are de-listing them where they had scored rank in the past.
The tactics currently being used by a few domainers and other websites are simply unacceptable (Understatement!). There are just too many other ways to capitalize on typos .... if that's what they want to do.