I observed an unusual criticism on frames. No-Frames is become a buzzword nowadays. Instead of blindly criticising things we should analyze that when to use what. Usually they do not suit websites, but they work well in web-applications where you can stick with specefic browser and search-engine optimization is not required. I have used frames in corporate web applications and it reduced a significant amount of bandwith. Ajax, Frames, DHTML, Master Pages, and Remote Scripting are different options. If you know how theywork you can figure out that which one is meeting your requirement the most.