it's recommendable to place externally loaded content into an iframe?

Question

For instance the Twitter widget, should I place it inside an iframe or directly in the main page, if Twitter goes down can my site goes down if the widget isn't inside an iframe?

Answer 1

body.onload doesn't appear to wait for iframes http://stackoverflow.com/questions/957133/does-body-onload-wait-for-iframes so IMHO, if you're NOT going to use an iframe, you should probably wait until onload trying to load twitter widget