Answer:

tweeted

Answer	Crossword Clue
TWEETED	Addressed one's followers, in a way
TWEETED	Chirped
TWEETED	Wrote with limited characters

TWEETED	Sent a message to one's "followers"
TWEETED	Sent a quick message
TWEETED	Contacted one's followers, nowadays
TWEETED	Used a microblogging service
TWEETED	Like some breaking news, nowadays
TWEETED	Made like a small bird
TWEETED	Made like a canary