Crossword puzzle clue "message read on a laptop"

Message read on a laptop

Well-read thing and some who read it

Puzzle where the same letters read across as read down

Section to read before checking the message boards

What to do to read the secret message (going diagonally down, then diagonally back up the under side)

Brief message read by one's followers

Message that includes the original message and all succeeding replies

"Message" is its message