Also, mention alternatives that emerged. For 3D web content, WebGL is now the standard. For games, Unity and Unreal Engine can create web-based games, but again, more native apps for mobile now.
Potential user comments: "Why did Shockwave fail where Flash did?" Maybe touch on the fact that Shockwave was more niche, less integrated with the web, and maybe harder to develop for. Also, the rise of smartphones made desktop-centric plugins less viable. shockwave plugin
Check for any common misconceptions. For example, some might confuse Shockwave with the audio format. Clarify that it's a web plugin, not a file format. Also, mention alternatives that emerged