Digg, ... don’t fail in a day
It depends on precisely what you mean by "fail" and how strictly you take "day", but Digg did lose 50% of its traffic within 30 days (and it never recovered).
Digg, ... don’t fail in a day
It depends on precisely what you mean by "fail" and how strictly you take "day", but Digg did lose 50% of its traffic within 30 days (and it never recovered).