Do you have fewer Twitter followers than the folks who follow you?
If so, cheer up, it’s normal, thanks to the magic of simple statistics! You are more likely to be a friend of a popular person simply because he or she has a larger number of friends. So, on average, your followers are likely to have more followers than you do.
Feel better?
For a more detailed explanation, read this Scientific American article by John Allen Paulos.
Photo attribution: Flickr user seraphimc