If you are evaluating Surface Pro 3 or using it already, you should definitely checkout the true integrated innovation from Microsoft OneNote and Hardware teams. Truly amazing!
Also check out i.e. Save any web page to OneNote and view it later, online or offline.
You can get at https://www.onenote.com/Clipper/OneNote (very handy)
Including this as reference page for Using Surface Pen - http://www.microsoft.com/surface/en-us/support/touch-mouse-and-search/surface-pen