I am working on a new top secret project and part of it involves a Google Gadget. I just spent 2 hours trying to work out why links get stuck in an iframe instead of the parent page.
Here is the answer that took a while to find:
External Links
Gadgets that wish to direct the user to a third-party site should do so in a new window. All links should set target="_blank" in any href tags so that external links do not open inside of the gadget’s iframe.