BelleLeDoux - 4:15 pm on Aug 22, 2001 (gmt 0)

Quite a tough category...
How about these possible areas:
1. publishers for web design and design related literature, and the other areas covered in your list of services
2. online training centers
3. hardware and software providers
4. associations related to the services you offer

Another thing you might consider doing is to have the links as part of your body text instead of a separate and more prominent entry. That way you can put them on your homepage or one of your important pages without making it too prominent.

I hope this helps.