We’ve talked alot about Pluggio in the past. It’s a very handy Twitter client which is great for finding new people to follow, and for importing RSS feeds. It also has two ways to allow you to schedule your tweets into the future.
The traditional time specific scheduling similar to Hootsuite but also a rolling schedule that allows you to put space between your tweets, ensuring that you are not crowding followers timelines with heavy tweeting.
We don’t recommend that you use scheduling exclusively for tweeting, but in conjunction with your personal tweets and conversations it is a great tool for delivering consistent tweets even when you are not there.