5 Free Services for Pre-Scheduling Your Twitter UpdatesBut there are some great solutions. The ability to post-date a tweet is useful for event promotion (where you may be busy at said event), to reach an audience in a different time zone, to space out your messages, or to keep your account nice and lively while you are away. While some popular Twitter clients offer scheduling options built-in, others don't. For those in need, here are five great, fre
