At this time there is no way to 'Add an Associate' on ActiveRain. With the new profile pages, it was a link we forgot. Not sugarcoating anything here, it was an overlook on our part.
We are in discussions to either bring it back or remove the feature entirely. We'd like to know what you think and how you use it. If it's something we can build upon to make better that's a possibility, we may go back to way it originally was or it could get removed.
Do you use Associates? If so, how? If you could make it better, how?