Yes, there are a ton of software to choose from to automate twitter marketing. Right now I am using TweetDemon, Twidium, and FollowLiker for different things. FollowLiker seems to have the best support at this point in time. Something just happened today with my TweetDemon account, so at this very moment, I'm not sure about them, but sometimes they just need to reactivate my license, so we'll see.. Twidium support has been hard to get a hold of lately and there are a couple bugs I need fixed, but other than that it's a very extensive tool also, but there is a yearly fee. FollowLiker is inexpensive (one time fee) and you can also get their instagram, pinterest, tumbler, etc tools if you'd like to automate any of those. There are a couple other features I'd like FollowLiker to add (filters for following/unfollowing particularly). Also, there is a learning curve to any of these tools, but once you get the hang of it, it's all so worth it!