The social sharing bar is about to get even more crowded. Microsoft’s Skype is making a bid for that precious digital real estate with the rollout of its own Skype share button, designed to be displayed alongside similar buttons from Facebook, Twitter, LinkedIn, Reddit, Pinterest and others.

Skype’s button was rolled out this morning in partnership with another Microsoft property, MSN, which is adding the button worldwide. The company is also partnering with sify.com in India, and encouraging third-party site owners to add a customizable Skype share button to their websites.

Clicking on the button will open a window that lets Skype users send a link and optional message to their Skype friends, with the potential to later launch into a Skype IM session or video or voice chat if the recipient wants to respond and talk about the content.

More info and details are available on the Skype blog. Here’s what the sharing box looks like.