You can easily add social media icons to your site and associate the icons with specific Content Types using the ShareThis module.
- Go to Configuration > Web Services > ShareThis to configure the module.
- Choose the Widget type
- and Button Style:
- Choose the services you would like to include:
Indicate if you want the icons to display on a block, page of content (node) or links area.
Indicate which content types you want the icons to display.