My newsletter is periodic, pretty much one per week. Special editions may go out every now and then if there's something really important and time-sensitive to tell you guys about, but once a week is probably about as frequent as they'll get for the foreseeable future.
I shouldn't have to tell you that I'll never sell, rent, lease, or let anyone borrow your email address. I might give them your first name, though, if they pay me enough. Anyone want to buy a list of first names? 25 cents each? Anyone?
There ya go. Enjoy!