Power Ventures and its CEO were found liable for sending 60,627 spam e-mail messages to Facebook members.
In an effort to stop spammers, the web giant rejects emails that include "highly restricted" character combinations.
Google Play has updated its content policy to tighten its rules around in-app advertising, in-app payments and misrepresentation.
The photo-sharing network gets hit by an unusually colorful spam attack, as pictures of fruit flood users' streams.
Federal Trade Commission files complaints over the sending of 180 million unwanted text messages that tried to lure people to Web sites and prompt them to give up personal information.
Patch will block spammers from using vulnerability in McAfee software to sneak spam out.
In its fight to deter spammers, the social network gets tool provider TweetAdder to agree to a strict settlement regarding Twitter's terms of service.
Google warns users about potential unauthorized account access after spammers use back door at Plaxo, CNET has learned.
The social-networking site is working to shut down five popular spam tool providers by suing them in federal court.
More spammers are trying to break into legitimate accounts, the company says. But Google is adapting to their methods.