Two easy ways to improve user experience.
As a user: Use noscript
As a designer: Keep your content above the fold, and your logos not gigantic. There's no reason I should look down 480~ pixels just to see the first line of the content.
That way, when you are on example.com, it will still load any scripts hosted on example.com, but not Facebook/Twitter/ad/other widgets.
You're scrolling now, aren't you? :-)