What are the differences between twitter and Facebook?

[I love Draco Malfoy]

I want a twitter to comment on other peoples twitter accounts but I don't really want to have a profile page and stuff like Facebook....
Can I comment without creating a twitter account?

[Scott Sullivan]

Facebook is more popular
and no, you have to have a twitter account to tweet and/or comment

[Check]

it's almost the same thing, twitter is kind of complicated and most of the "stars" are using it, and facebook it's more for normal people like you and me, yeah... i will move on to twitter i'm a star!!

[corncrake]

You can comment on twitter accounts without being on there as some people's facebook profiles are literally the twitter posts fed through apps back onto facebook. Depends who you or what you want to comment on, sports people and musicians use twitter far more than facebook and you can get a little to close to some (they chops back at you)