TITLE: Magnitude of Graham's Number?
QUESTION [15 upvotes]: I recently stumbled across this number, and then (foolishly, most likely) decided to try to describe it in a blog post
http://frothygirlz.com/2010/01/14/big-numbers-part-2/
Q - Are there any comparisons of Graham's Number, hell, even G1, to other well known "big" numbers, such as googolplex?
I'd just like to have some way, however abstract, to be able to pretend that I have some sort of idea of the magnitude of this number.
Any help and/or tips would be much appreciated.

REPLY [6 votes]: I realize this thread is from a year and a half ago (a possible spam post moved it into the current thread titles), but if anyone is still interested in these issues, about 9 years ago I posted in sci.math a lengthy essay on Graham's number and then followed it up with three more essays (and a promise for more, which I never got around to).
GRAHAM'S NUMBER AND RAPIDLY GROWING FUNCTIONS [2 March 2002]
http://groups.google.com/group/sci.math/msg/0f3c8bab92145996
BIG NUMBERS #1 [8 April 2002]
http://groups.google.com/group/sci.math/msg/403051f310ff3dfc
BIG NUMBERS #2 [8 April 2002]
http://groups.google.com/group/sci.math/msg/d12962e3af2c74b7
BIG NUMBERS #3 [8 April 2002]
http://groups.google.com/group/sci.math/msg/4f2ed8e0385b72f2