How many pictures of a session do you like to post? Choose a representative single shot that leaves people anxious to see the photo immediately before or immediately after ... or post 100+ more of less identical images that monopolise the whole "New Pictures" page?
I usually post about 10 pictures at a time, but I might post 20 pictures of a session (eventually). I try not to post pictures that are almost identical, but I do take a few of the same picture (camera setting to take three pictures in a row) and choose the best one.
I usually post just a few pictures at once (maybe once per week), and I have a LOT of mud sessions to post from, so each time I post they are all pretty different. I like to think that if I post just two or three pictures per week, it will keep people wanting more.