Splog, the blog equivalent of spam, hit Google's blog-creation tool, Blogger, and the BlogSpot hosting service with the largest assault seen so far. To manipulate search engines results, an attacker used automated tools to create thousands of fake blogs loaded with links to specific mortgage-industry web sites. It also flooded RSS feeders and email alerts.
The extent and the methods used to mount the attack show that splogging is a growing threat. PubSub and IceRocket.com plan to stop indexing sites made with Blogger until a fix has been implemented. Some are calling for Google to shut down Blogger due to its insufficient security protection.

IEEE Security and Privacy magazine, Vol.3, No.6, p.7, December 2005