My monthly newsletter goes out to over 3k people each month.
Advertisers go right at the top, just under my introduction where I actively encourage my readers to click the links. The link can be to your shop or business.
 
I take 5 advertisers each month. This is to cover the fee of sending out my newsletter. I make no profit on this, but it's a way to keep my newsletter running for people for free.
 
I am currently taking bookings for December's newsletter . I will allocate spaces on a first come first served basis.