Yahoo's suing Facebook over a series of patents, claiming the entire company is built on its technology.
A company in which Microsoft has a financial interest is suing Apple, claiming it infringes eight wireless communications-related patents.
Not entirely unexpectedly, two groups of broadcasters are suing Aereo, the recently-launched streamed television service.
Well, it's taken a long time, so let's hope it's worth it: Apple's reached agreement in a class-action lawsuit over the poor performance of the iPhone 4's antenna.
Running out of patience, an Indian court has given Google, Facebook and other internet companies just 15 more days to remove 'objectionable' content - although the companies say they've already done all they can.
Washington state and Facebook are suing a Delaware company for 'clickjacking' and other spam-spreading tactics.
A major British electrical retailer has been accused of manufacturing and selling counterfeit Windows recovery disks.
M-Edge Accessories, which makes cases for the Kindle, has accused Amazon in a lawsuit of acting like a corporate bully.
Personally, I wouldn't piss off a fifty-foot tall robot equipped with laser weapons, but then I'm not in charge at Asus.
The UK's biggest service provider, BT, has become the latest company to sue Google claiming patent infringement.
Carrier IQ is finding itself under even greater scrutiny than its clients' customers, following allegations that its mobile tracking software is invading the privacy of phone users.
Well, it's perfectly understandable, really. If you were running a major porn studio offering everything from Debbie Does Dallas...Again to group sex cams...
Even a lot of educated lawyers and people who understand the law will often tell you lawsuits are a big waste of time, and you usually don't have to look too far to find laughable litigation someone's filed somewhere.
Motorola Mobility - currently in the process of being taken over by Google - is being sued by a patent-holding firm partially funded by, er, Google.
With a judge about to hold a status conference on the legal challenge to Google's library scanning project, the Authors' Guild is suing five US universities over the way in which they've taken part.
Right, everybody, let's have a whip-round. Righthaven, known for its spirited acts of self-defence when threatened by evil patent violators, says it may have to file for bankruptcy if its latest lawsuit is unsuccessful.
Sprint has filed a lawsuit aimed at preventing the proposed AT&T-T-Mobile merger, adding its voice to that of the Justice Department to claim that the deal would increase prices and hamper competition.
Microsoft's been hit with a class action lawsuit alleging that the Windows Phone 7 operating system tracks its users geographically without their permission.