Skype's SEC filing reveals huge revenue swings

In order to , Skype has with the U.S. Securities and Exchange Committee that forces the company to reveal information it would otherwise keep secret as a private company. For instance, Skype revealed that it worries about whether the and other Apple products will undermine its VoIP services (see related story, ).

* Dependent on SkypeOut: The company relies on income from users who pay to place phone calls from Skype on their computers to traditional public phone networks via the SkypeOut service. For the six months ended June 30, 2010, 87% of net revenues were generated by SkypeOut.

* Trouble attracting corporate business: Skype for Business - enabling corporate IP PBXs to receive Skype calls - as a source of revenue: "currently limited."