Hello, I am trying to locate the best and most cost effective manner
to conduct market research for my small business. I am a service
organization (mostly offline) selling to other businesses (B2B). I am
looking for a general profile on competitors and good prospects
(numbers, sizes, annual sales, etc.). Are there any web sites that
offer this service at a reasonable price? Thanks..........

Smallbizguy --

You're at one of the best sites with Google Answers.  Specify exactly
what you're seeking and I think you'll be surprised by the creativity
of researchers in finding information.

There are websites that specialize in on-line research to track your
existing customers.  A good search strategy would be to use:
"on-line" + "market research"

Best regards,

Omnivorous-GA