Twitter has some 1.3 billion registered users. Of those only 310 million (as if 310 million is a small number lol) are regular monthly users. Some 44% of Twitter users have NEVER sent a tweet. Are you one of those who can’t think of what to post? Well, the folks at red website design thought they could help and came up with 99 great ideas about what to tweet about, which we are sharing here.