3D animation on the web

www.cult3D.com for realtime 3D on the web

www.adobe.com/products/atmosphere/ Adobe Atmosphere for real time 3D on the web.

www.macromedia.com for realtime 3D on the web - look for links to Shockwave or Shockwave Studio.

www.erain.com/ for swift3D plugin for creating Flash swf files from 3D sequences.

www.vecta3D.com/ plugin for creating Flash swf files from 3D sequences.