During this summer I have nice traffic from twitter. My followers shared my links in different social networks. (pinterest, fb) and I had good traffic for my website. One day I had 15.000 visitors on my website but from twitter it was 200-300 visitors. Suddenly, beginning from September (exactly 28-29 August) my traffic down. And today I have only 500 visitors on my website per day from my 177.000 followers. Anybody knows why? Why in September my traffic down?