Here's a present from Skype to you: a free month of Skype Premium with unlimited worldwide calling. This promotion is similar to the one offered last month, except this time it's open to both new and existing Skype users, and there's no cutoff date to grab the promotion.
The fine print does say, however, that the offer is available "while supplies last" (whatever that means) and you have to login within the first 27 days of activating the promotion.
Skype Premium is normally $US9.99 a month. It allows you to call landlines in over 40 countries or mobile phones in seven countries.
You also need to provide credit card details to take advantage of the offer, which could be a dealbreaker for some of you. If you do go ahead, don't forget to cancel the premium service within 27 days, unless you want to continue with it.