Many of us look at all large numbers as pretty much the same. A million, a billion, what's the dif? In his book Innumeracy, J A Paulos points out that it takes a little over 11 days for a million seconds to tick by yet it takes 32 years for a billion seconds to pass.
Some web sites that look at small and large numbers follow:

The MegaPenny Project ...... kokogiak media

Getting a feel for big numbers ..... Mitchell N Charity

Thinking Involving Very Large and Very Small Quantities

The Law of Large Numbers