Definition of ISP vs Transit provider

[surfer at mauigateway.com (Scott Weeks)]

--- Jacques.Latour at cira.ca wrote:
From: Jacques Latour <Jacques.Latour at cira.ca>

ISP: Anybody offering services over the internet, 
including Transit Providers.

Transit Provider:  An internet service "transit" 
where the whole Internet can reach your advertised 
network addresses.
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I deleted the smiley face, so that may have more to
do with this than I expect, but the above won't work.  
At home I have 2 upstreams, the whole internet can 
reach my advertised addresses and I provide 'transit' 
for my neighbor via an RF signal.  Which one am I?  
I'll add a :-) too...

scott