First you need a softward to create a graphic of your newsletter,you need a form(this I am sure you know how to program).
Also what you need the most is content.
My advice(guerilla marketing),look for very good articles relating to the topic of your newsletter and combine/alter them so you produce a new article!!!
NOte
ont plagarize(copy outright).It is punishable by law.
Use your discretion and your initiative!
As the old saying goes:WHY RE-INVENT THE WHEEL!
