Hi there,
If you’d like to specify which services appear, rather than using the user-personalized buttons, I’d recommend you switch the plugin to AddThis.com dashboard mode.
The AddThis.com dashboard would provide additional configuration options such as being able to change the services.
To change this, go to the Advanced Options page within the plugin settings and scroll to the bottom to look for “I want to control my plugin from…”. You’ll want to change this to AddThis.com instead of WordPress.
http://screencast.com/t/GAIs1LIy
So there is no way to select which social networks show up without going through the AddThis.com dashboard? If so, that is highly disappointing.