Exposition is the full form of expo, and it carries more weight. It reads as a formal trade exhibition rather than a pop-up event, which suits an established show or an organiser positioning at the serious end of the market.
Media expositions are a real event category: broadcast equipment shows, publishing fairs, advertising weeks, and production technology circuits. The audiences are professional, the exhibitors have budgets, and the shows recur annually for decades.
There’s a second reading worth noting. Exposition also means explanation or exposition in the narrative sense, which suits a media analysis publication or an educational platform about how media works.
The name fits an event brand, an exhibitor directory, a listings site, or a virtual exhibition platform. Sixteen characters, two plain words, no hyphen, .com, and exposition is spelled and understood identically across English-speaking markets.
Enquiries welcome.