I've always been a big fan of Adobe Flash. We've used if for numerous websites and CD-ROMs, its great for slick animations and innovative navigation systems (like our "London Underground" style navigation tree we created for the University of Pretoria's information CD-ROM). But I've noticed recently a moving trend on the web to use javascript for flashy like effects. The technology works so well, sometimes I dont even know if it is Flash and have to right click on it just to make sure!