Some of these items will apply better for larger acts, some items will work for any act. Some may work for you, some may not… not yet. Some these can be done with little effort, some will take some web development, some might even require some significant development. Some of these have successfully worked for me over the years. The point is to create a list of items that would cover a wide range of acts and abilities.
The end result of all this will hopefully be more Facebook likes, Twitter followers, email list subscriptions, more sales and more traffic to your website… more fans!