Optimizing your marketing contact list does not end with just cleaning out the list itself. It involves maintaining and nurturing a good relationship with the people on your list and being relevant to them, so that they always look forward to your emails and posts. Much like in training, consistency is key. Contrary to reports that email marketing is dead, it is alive and well, especially since it provides a solid anchor in the constant stream of information available on the internet for your contacts. Here are four ways that you can use email and other media to maintain and grow good relationships with the people in your marketing contact list.