Ask HN:Pop-ups, previews, help bubbles, etc.
alex_c: I think many tech blogs are the worst offenders, and go way overboard with widgets and third party services.  Take the front page of TechCrunch - it weighs in at 508KB.  Mashable gets to about 884KB before FireBug gives up in disgust.I can't really see this being sustainable in the long term.