Features:

• Allows embedding of Facebook, Twitter and Google+ buttons
• All buttons are only activated after a first click
• Users can choose to permanently activate selected services
• Cuts down network load, because fewer requests are made on initial page load.
• Helper function allows embedding of buttons inside your own templates

Languages included:

• English (en_US)
• German (de_DE)

(If someone wants to translate to other languages, I'd be happy to include them)