"poster announcements" is a correct phrase and can be used in written English.
It refers to any written or printed notices that are displayed on a poster. Example: The school had multiple poster announcements on the bulletin board, informing students about upcoming events and important deadlines.
Elderly subjects in senior residences were recruited by poster announcements or by word of mouth.
Young subjects were recruited by poster announcements from the university community.
All subjects were recruited by get-togethers and seminars or poster announcements in retirement homes.
Participants were recruited by flyers and poster announcements in lecture halls, student centers, and the employment units at local companies.
Send out invitations as appropriate (by email, by mail, by poster, announcement at a meeting, etc).
I loved the way Castelli did his folded-poster announcements, so for the Warhol show we used eight-and-a-half-by-eleven-inch stock and printed one of the soup cans on it; those are collectors items now.
Posters and announcements have not improved the situation.
Redesigned posters, audio announcements, in-station LED signs and various digital outlets, including Twitter and a revamped Web site, allow riders to check the status of their train before reaching the platform.
Steven Leiber had his own gallery in San Francisco -- the Steven Leiber Gallery, which opened in 1983 -- before he honed his specialty to artists' ephemera: the brochures, posters, exhibition announcements, fliers and the like that were designed by artists themselves and that began to proliferate in the 1960s and '70s.
Participants were recruited from the community through posters and announcements on a local community website.
Posters, media announcements, online classifieds (Kijiji and Craigslist), and Facebook were used to disseminate information to families in the Greater Vancouver area about the trial.
