On Twitter, if you block somebody, will they know?

[Sophie]

[kate]

Blocking someone means that you (and your picture) will not appear on the blocked party's profile page, friends time line, badge, or anywhere else. The person will not be notified that they've been blocked, and they will be unable to follow you. If your account is public, the blocked party can still view your profile page, but can't receive your updates in their timeline or on their phone.

If they try to re-add you as a friend they will see this message
"The page at http://twitter.com says: error|You have been blocked from following this account at the request of the user. "

[Lee J]

If you black some body in Facebook the person who was blocked would not know you blacked him or her. Same thing applys to twitter, only you know you block who.

[Jasmine]

No

[Country]

yes of course , people are not stupid.

sme goes w facebook or myspace.
the worst thing is making certain people see certain things thats so rude and shady. like I said it will say "YOU" cannot view this page.
so its obvious on that.
or twitter obvious also. plus if any old posts were there is will be obvious too.

sometimes though people can confuse this with a person deactivating thier account though

dont know I do not go on the social internet because the cia spies on people and if you are against obama, area christian ect you will be on FEMA'S list with the nsa and homeland security to be placed in residential FEMA concentration camps during fema martial law soon in america.
so deacivate thats shit asap