Like many other social networks, LinkedIn provides a set of time-saving widgets or plug-ins to allow you to have the most commonly requested content easily embedded in your website with minimal technical fuss. The LinkedIn member profile plug-in is one of those - they supply the code, you paste it into your website code.
You have three options - one in which the profile appears inline and two in which a link is created that, depending on your preference, the user clicks or hovers on to reveal the profile. The links can be LinkedIn icon only or icon + text.
Unfortunately things don't always behave the way you expect them to! Size, positioning and closing a revealed profile by mouseout are the main bugbears that I've come across. Whether you are a website DIY enthusiast or a professional, you might find these tips useful for getting it to work more elegantly for you.