Source of information

IN
Written material: book, magazine, journal, newspaper...
She read it in a book.
Did you see the picture of the president in today's newspaper?
I read this great article in the journal English Teaching Forum.


ON
Electronically: the radio, the Internet, telephone, TV...
I heard a new song on the radio.
She watched a sitcom on TV.
We found American English resources on the Internet.


americanenglish.state.gov