Mozilla have released Lightbeam, as an add-on to their Firefox browser.
What this does is allows yo to disable all of the third party bits that load at the same time as you're viewing your favourite sites.
When a page loads in most browsers there will be a small bar at the bottom of your screen, this will say something like "waiting for (maybe) yieldmanager.com" or some other thing.
These 3rd party things slow your browser down until they themselves load or mine some data out of what you've just clicked on.
What this new tool does, is puts some control back in YOUR hands as to what loads when you click on any given website, it also stops other parties getting a free ride out of your web browsing experience.
If you use Firefox, have a gander at this: Mozilla Lightbeam defined
[A little disclaimer here, it was actually my good friend Electure, that alerted me to this, although I'd heard about it on the radio, I didn't know what it was called, so thanks, Scott!]