How do you promote your ILL services?

New ILLiad licensees frequently ask for suggestions on how they can best promote their new services and we know you have some great tips to share. How do you promote your ILL services?  Do you use promotional materials like the ones offered at OCLC http://www.oclc.org/en/illiad/promote.html? We would love to hear your success stories and ideas for getting the word out about ILL services.