I didn't came from any "joy-killing-institutions", so i don't really have any idea on how schools, offices, government offices blocks some sites. But as far as we know, that this potential good source of traffics drives away because schools block them, so I just want to know if also these institutions that blocks your site also blocks e-mail providing sites such as Yahoo, Gmail, Hotmail, etc. Do they also block Yahoo, Gmail, etc on schools? Thanks in advance and more power. All senseful replies are highly appreciated.
They don't usually block email providers as most are used for school related tasks. They usually just block entertainment sites as they don't want people 'goofing off' at work or school.