Memorials are fewer and simpler than in the past . But 9/11 topics trend on Twitter and Facebook , filled with photos and remembrances . Social media gives people a way to express their emotions . Comment:
Memorials are fewer and simpler than in the past . But 9/11 topics trend on Twitter and Facebook , filled with photos and remembrances . Social media gives people a way to express their emotions . The NYPD even used Twitter and Facebook to remember their fallen .