404. That’s an error.

The requested URL /bookmarks/mark?op=add&title=http%3A%2F%2Fwww.intel.com%2Fcontent%2Fwww%2Fus%2Fen%2Farchitecture-and-technology%2F64-ia-32-architectures-software-developers-manual.html&t=&v=3 was not found on this server. That’s all we know.