Skype is such a bastion of basic Internet service that most of us at this point take free VoIP and dirt cheap telephone calls for granted. Unfortunately, Skype never has been able to do the same: the company has always had a hard time with profitability, and it’s been traded and sold so many times between various parties at this point that it may very well be one of Silicon Valley’s most in-demand call girls. Things have only gotten worse as companies like Google have entered the VoIP fray with products like Google Voice. Skype needs to try new things to stay profitable… and now they’ve announced one of their first steps after charging for group video calls towards a more lucrative business model.AdChoices广告Sadly, it’s ads. Skype has just announced that it will begin showing advertisements as part of the Skype for Windows home tab starting later this week, which will be the first time that advertising has been promoted within the app. Ads will start rolling out in the US, UK and Germany first, with other countries to follow, while some of the first advertisers will include Groupon, Nokia, Universal Pictures and Visa, who have opted to buy daily ad campaigns.Thankfully, Skype’s approach to ubiquitous ads in the desktop app isn’t entirely noxious: there’ll be a “hide ad” button for users fed up with seeing ads on a daily basis. Skype is also making it easier for people to reach out to the buyers of an ad space with a “Click & Call” button that makes ordering a proffered deal just a click away. They will also add a new “share” button that will hook into social networks like Facebook and Twitter.No doubt this move is likely to annoy Skype users, but honestly, Skype’s been giving away free VoIP for years: we frankly can’t believe it’s taken this long to implement advertising.