Rounding up examples of websites that do a good job of promoting creative or production services.
Here is an example of multi-service offering company, but with each service clearly explained in a way that sells it to the prospective client and probably cross sells services they hadn't thought of too. Also there is some good articles on the blog.
http://theindesignguy.com/web-design-services/
I like the descriptions of the services, breaking up visual design services and development service, and explaining Wordpress benefits. Also very clean visually and good blog.
http://www.oliverker.co.uk/services
Good example of a portfolio site whilst employed. Friendly tone, lists and explains skills, mentions interested in freelance.
http://stina.co.uk/