Q. I need resources on 3 movements: Black Lives Matter, Occupy Wallstreet, and 2016 Women's March

The following were good:

1. Catalog  
2. Jstor
3. Academic search complete

Good keywords were names of the three movements in combinations with "Social movements, Social media, Protest movements, Dissent, Political protests, Social change, marginalized"
 
Sample searches:

marginalized AND social movement  AND Occupy 
marginalized AND BLM OR Black Lives Matter   
Social movement AND Women's March AND Black Lives Matter 
Social movement AND Occupy AND Women's March AND inequality

Seeking two events at a time proved most useful.