I launched my latest project a week ago. I've had a decent number of visits to my site(at least for me) , but nobody has signed up for a free trial yet.
I'm not giving up yet, but that got me thinking. When do you decide it is no longer worth the effort to pursue an idea further? Does anyone have a good metric they use? How many visitors should I have to know I have a good selection (I know quality of visitors matters too).