I have been using wordpress for almost a year. but for the last two months, I am going through an unbearable problem. That is I can't share my links on anywhere. No facebook, no twitter. If I post my links, they doesn't show a preview or thumbnail or anything, they just shows the link. I have tried almost all the facebook share plugins, but none has worked. I don't know what to do now. All my posts are now becoming flop because nobody gets to know about them when they are published. Plz help me.
My site : http://www.doinik-iut.com