This article was originally published in the KISSmetrics blog.
Twitter lists allow users to categorize their followers into different segmented lists based on a particular subject or theme. For instance, Twitter users can create a list of their friends or favorite brands to follow.
Lists can also be made private or public; if they’re public then other Twitter users can subscribe to the list and see the tweets of members included on that list without having to follow each individual member of that list. This presents an opportunity to follow curated lists of experts on a variety of subjects.