Yahoo has sued social networking giant Facebook over the alleged infringement of 10 of its patents.

Yahoo has sued social networking giant Facebook over the alleged infringement of 10 of its patents.

 
The patents in question relate to messaging, news feed generation, social commenting, advertising display, preventing click fraud and privacy controls, which targets a number of important features in Facebook's service.
 
"Facebook's entire social network model, which allows users to create profiles and connect with, among other things, persons and businesses, is based on Yahoo's patented social networking technology,” Yahoo claimed.
 
Facebook responded by describing the lawsuit as puzzling, since Yahoo has not made any attempts to settle out of court. It said it was disappointed that a longtime business partner resorted to litigation. Interestingly it never denied the allegations.
 
 
The case follows recent announcements by Facebook of a plan to go public later this year for a whopping $5 billion. The timing is particularly significant as Yahoo also sued Google before it went public in 2004. Google settled with a transfer of 2.7 million shares, a move which Facebook could also do, though analysts believe it will be more difficult to get money from the social network.
 
Yahoo is facing mounting financial difficulty as it struggles to remain relevant in a digital age where rivals are quickly advancing new technology and services, leaving the once dominant internet portal in the dark. Layoffs and a board reshuffle have failed to rescue the company and even a payout from Facebook will only be a temporary boost until the company starts attracting customers again.
 
Source: BBC