How can I scroll to the top/bottom of web page with a three finger gesture?

macos multi-touch trackpad software-recommendation scrolling

BetterTouchTool (free)

enter image description here

Related

Can I view websites on an iPad in an iPhone sized window?
How do I sync an iCal calendar across Lion, Lepoard, and iOS 5?
How do I shade the region between two curves in Grapher?
What is the latest version of Safari that runs on PowerPC (PPC)?
iOS Simulator installed apps location in Xcode 4.3.1
Not enough space to migrate from Legacy FileVault to FileVault 2
Recommendation for genealogy software for OS X?
Wobbly Macbook Pro
App Recommendation for automatically stitching screenshots together on iOS
Which NAS for Mac users?
Has the retina screen effectively made dead pixels moot?
How do I block OS X's auto detection of shared drives?