Microsoft has purchased internet-calling startup Teleo, which may enable them to offer features in MSN Messenger similar to what SkypeOut offers -- the ability to make a phone call from your computer to an ordinary telephone.
Another milestone for the distruptive VOIP company with headquarters in Luxembourg. They have also recently announced two more premium services, Skype Voicemail and SkypeIn.
As I have said many times before, the most powerful internet marketing tactic of all is to give away something valueable and free. Successful business models will then monetize the huge audience you attract with premium or add-on services or advertising revenue, a la Google.
Skype continues to disrupt. With 16.7 million downloads, they are now preparing a commercial service that allows Skype users to make phone calls that terminate on land lines. They announced 4 partnerships today.