LinkedIn have added a ‘providing services’ section on your LinkedIn Profile.
Unfortunately I have never seen the link to create or amend it on my profile.
But I found out how to do it via a direct link.
Change username to your linkedin profile name and you should gain access to this section.
Or just copy and past the following to the end of you profile URL.
The section is populated with pre-defined ‘services’ so you may not be able to create a list that exactly matches what you do, but the more features we take advantage of on the social media sites, the more likely we are to get our message across and communicate the value we can add.