noticeboard
noun [ C ]
UK uk/ˈnəʊtɪsbɔːd/ us(also message board); ( US bulletin board) WORKPLACE
a board on a wall on which pieces of paper containing written information can be fixed:
The reception desk at their headquarters is dominated by a large noticeboard giving the company's daily share price.
IT, INTERNET
an area on a website where messages containing information for other users can be left:
online noticeboards