I'd like to offer some help:
1. What are some of the does or don'ts of blogging?
"DO" ALWAYS USE THE CORRECT WORDS,
EXAMPLE: YOU WROTE "DOES" BUT I SUSPECT YOU MEANT TO SAY "DO'S"
NEXT, SPELL WORDS CORRECTLY, NOTHING TURNS OFF A READER LIKE MISSPELLED WORDS.
EXAMPLE: YOU WROTE "DON'TS" BUT IT SHOULD HAVE BEEN "DON'T'S"
2. Is it a good idea to use the blog to try to stir up business?
SURE WHY NOT, BUT PEOPLE MAY SEE THIS AS A CHEAP PLOY TO DRUM UP BUSINESS, SO TO THROW THEM OFF, HOW ABOUT BLOGGING ABOUT HOW GREAT OTHER PHOTOGRAPHERS ARE? (LIKE ME FOR INSTANCE)
3. How often should I post?
THE SECOND TUESDAY OF EVERY ODD MONTH, UNLESS IT IS A HOLIDAY.
4. Are there any topics that I should refrain from if the general public may be viewing my blog. I do live in Iowa which is typically considered conservative. YES, STAY AWAY FROM IOWAN PIG FARMER JOKES, OH AND IOWAN PIG FARMER'S WIFE JOKES.
5. For those that do blog how do you keep things fresh?
BLOG WHILE NAKED...
HOPE THAT HELPS!