1) They are registered
with the
BBB and have been for several
years. 2) Economically
it makes sense, as is proved
here. 3) They
are affiliated with such high
profile companies as AOL, eBay,
General Motors, & Netscape.
They do not just advertise with
any run of the mill company.
Below are some links showing
how much various companies pay
Gratis for each referral.