Slate and Grantland

Slate and Grantland have several social media pages. Here are a handful that I found:

Slate

1. Twitter @Slate
2. Twitter @SlateArticles
3. Twitter @SlateCultFest
4. Twitter @Slatest
5. Facebook Slate.com
6. Facebook Slate Culture
7. Facebook Slate's Culture Gabfest
8. Facebook Slate Political Gabfest
9. Facebook Slate Explainer
10. Facebook Slate Politics 

Grantland

1. Twitter @Grantland33
2. Facebook Grantland