Skype has released the beta of their 3.0 software. This latest version adds plugins for Firefox & IE that turn the phone numbers on websites into Skype buttons that allow you to click them to call via the program. You can grab it here if you should so desire. From the preview at GigaOM:

"The company created four tabs — Contacts, Live, Call Phones and History — that make navigating the service a lot easier, and shows off features that were pretty hard to find before."