Are you using Linkedin’s relatively new feature called “Companies”?
You should create a Linkedin company page, even if you don’t have an incorporated business.
One of the advantages of having a company page on Linkedin is that you can create a services/products page, such as this one.
Once you’ve created a product page, you should invite your clients and contact on Linkedin to recommend your product or service.
This kind of recommendation is somewhat easier to get since all it takes is two clicks of a mouse, and writing a comment is optional, so your clients and contacts don’t have to spend time writing an endorsement.
Having a Linkedin company page also works well if you’re trying to separate your business from your own personal profile, and for building a brand.
To learn more about effective use of Linkedin for business, check out my Linkedin to the Max seminar. On this page you’ll also see how I use Linkedin’s feature to show how many recommendations my service page has received.