You can post up to 2,400 tweets per day

You can post up to 2,400 tweets per day (this is spread throughout the day- there are limits per half hour, so you can’t just post 2,400 all at once!) You can post up to 250 direct messages per day (thank goodness!) You can change your email up to 4 times per hour (why would you want to do that anyway?)

You can post up to 2,400 tweets per day (this is spread throughout the day- there are limits per half hour, so you can’t just post 2,400 all at once!) You can post up to 250 direct messages per day (thank goodness!) You can change your email up to 4 times per hour (why would you want to do that anyway?)

You can post up to 1,000 direct messages per day (thank goodness!) You can change your email up to 4 times per hour (why would you want to do that anyway?)

As of May 30, 2013 you can now follow up to 1,000 lists (up from 20) and each list can include up to 5,000 accounts (up from 500). There are also limits when you use the Twitter API, but that’s another topic.