A report today warns that Blogger.com, has been infiltrated by a number of phishing sites.
In some cases, the Stration mass mailer is being used to drive traffic to these fraudulent sites. Beyond the problem of spam and phishing sites, a number of Blogger.com sites have been compromised with malicious code.
Hundreds of other Blogging sites (covering subjects ranging from Star Wars, school, furniture, Christmas, cars, and girlfriends) are also infected, according to net security appliance firm Fortinet, which has published an advisory highlighting its concerns.
Ed: My advice is make sure your AV protection is up-to-date and avoid surfing or downloading Blog sites you don't know that hold "active content"