I'm curious why it is that certain sites don't work well with Safari (like the new Yahoo homepage) or why certain features work better in Fireforx (like viewing pictures on Friendster). I'm sure I could come up with many more examples but I'd love to know what the technical reason is for this. Is Apple purposely not integrating certain web technologies from rivals (like Microsoft)? I just don't understand why Mozilla can produce a browser that works fine on a Mac, but Apple's own browser still seems to be behind?