I can get my hands on a mailing list of well over 25.000 mail adresses. These are all from 1 West-European country btw and consist of people in the following niches: Around 15.000 email adresses from parents of kids with learning difficulties/attention disorder and adults who have learning difficulties/attention disorders Around 3000 email adresses from doctors, psychologists etc. Around 2000 email adresses of schools, ranging from kindergardens to highschools Around 5000 unsorted email adresses but also in the general niche of parenting, school, education, health... I've been thinking about how to monetize them. Ideas so far include affiliate products from a local amazon-like website through a niche site + email campagnes but i don't feel like i found that prize-winning idea yet. Any of you guys have an idea or monetized a list like this before? If you are also interested in setting somethign up for this, i'm open to talk.