Here’s a nifty free tool that can be especially helpful if you want to have an international presence on Twitter: TweepsMap. This tool lets you visualize where your audience is located.
Knowing your audience’s location can help you determine what hours you should tweet. It also gives you insight into the messaging that may resonate best. You get data by country and can dig deeper to sort by state, province and city. Several image and chart options help visualize your results.
Also with the free version, you can compose and schedule tweets. You can set a weekly publishing schedule. Upgrade to a paid plan, and you get insights on the best times to tweet based on your followers.
You can learn about your followers and who you are following. With a click you see inactive accounts and unfollow.
There’s lots to explore here that can help you get the most from your efforts on Twitter.