Email Marketing Question:

41. What is a privacy policy?
42. How can I set expectations with my subscribers?
43. What is an email newsletter?
44. How can I avoid having my emails getting caught in a spam filter?
45. Should I "sign" my email messages?
46. What are some email list segmentation ideas?
47. What does "view in browser" mean?
48. What specific things should I be testing in my email marketing efforts?
49. What 3 things should be measured?
50. What words should you avoid in your subject lines?